First Quote Added
April 10, 2026
Latest Quote Added
"No mathematical idea has ever been published in the way it was discovered. Techniques have been developed and are used, if a problem has been solved, to turn the solution procedure upside down, or if it is a larger complex of statements and theories, to turn definitions into propositions, and propositions into definitions, the hot invention into icy beauty. This then if it has affected teaching matter, is the didactical inversion, which as it happens may be anti-didactical. Rather than behaving anti-didactically, one should recognise that the learner is entitled to recapitulate in a fashion of mankind. Not in the trivial matter of an abridged version, but equally we cannot require the new generation to start at the point where their predecessors left off."
"It was time, he thought, that tore everything to shreds."
"I'm afraid love is just a word."
"If we want to stay really human beings, we must get up and call the Zionists what they are: Nazi criminals. The hate of the Jews by the Germans was less deeply rooted than the hate of the Palestinians by the Israeli Jews. The brainwashing of the Jewish Israeli populations is going on for over sixty years. They cannot see a Palestinian as a human being."
"Auschwitz existed within history, not outside of it. The main lesson I learned there is simple: We Jews should never, ever become like our tormentors ...Since 1967 it has become obvious that political Zionism has one monolithic aim: Maximum land in Palestine with a minimum of Palestinians on it. This aim is pursued with an inexcusable cruelty as demonstrated during the assault on Gaza. The cruelty is explicitly formulated in the Dahiye doctrine of the military and morally supported by the Holocaust religion.I am pained by the parallels I observe between my experiences in Germany prior to 1939 and those suffered by Palestinians today. I cannot help but hear echoes of the Nazi mythos of "blood and soil" in the rhetoric of settler fundamentalism which claims a sacred right to all the lands of biblical Judea and Samaria. The various forms of collective punishment visited upon the Palestinian people — coerced ghettoization behind a "security wall"; the bulldozing of homes and destruction of fields; the bombing of schools, mosques, and government buildings; an economic blockade that deprives people of the water, food, medicine, education and the basic necessities for dignified survival — force me to recall the deprivations and humiliations that I experienced in my youth. This century-long process of oppression means unimaginable suffering for Palestinians."
"Formerly an anti-Semite was somebody who hated Jews because they were Jews and had a Jewish soul. But nowadays an anti-Semite is somebody who is hated by Jews."
"Ludwig Boltzmann, who spent much of his life studying statistical mechanics, died in 1906, by his own hand. Paul Ehrenfest, carrying on his work, died similarly in 1933. Now it is our turn to study statistical mechanics. Perhaps it will be wise to approach the subject cautiously."
"The way he taught statistical mechanics and electromagnetic theory, you got the feeling of a growing science that emerged out of conflict and debate. It was alive, like his lectures, which were full of personal references to men like Boltzmann, Klein, Ritz, Abraham, and Einstein. He told us at the beginning that we should teach ourselves vector analysis in a fortnight—no babying. Ehrenfest's students all acknowledge how much his method of exposition has influenced their own teaching."
"In passing I have to mention a typical Ehrenfest anecdote, not such a nice one, perhaps. Lorentz lived in Haarlem and all these celebrities, Rutherford, Madame Curie, Bohr, Einstein and very many others travelled by train, a special train, from Leiden to Haarlem. And the week before one of those rare fatal train accidents had occurred and I said to Ehrenfest, "Wouldn't it be dreadful if that train had an accident?" And Ehrenfest replied: "Yes, that would be dreadful, but think of all the young physicists who then could get jobs .... "."
"You will get your difficulties with the point electron."
"Einstein, my upset stomach hates your theory — it almost hates you yourself ! How am I to provide for my students ? What am I to answer to the philosophers ?"
"Goudsmit stumbled to fame in 1925. For more than a decade, Niels Bohr and others had been trying to develop a quantum theory of the atom, mostly by studying atomic spectra. These consist of the energies (specific to each element) of the quanta of light, or photons, that an atom’s electrons can absorb or emit. Physicists had been struggling to make sense of anomalies that appeared in spectra when atoms were immersed in a magnetic field: some spectral levels mysteriously split into two or more. Goudsmit and his friend George Uhlenbeck, both graduate students at Leiden University in the Netherlands, had an idea. They proposed that the splitting could be explained if the electron had an intrinsic ‘spin’ that could assume one of two directions: clockwise or anticlockwise. Other physicists had discarded this idea, seeing it as marred by conceptual difficulties. ... Soon, researchers including Paul Dirac explained away the conceptual difficulties. Quantum spin was born."
"Secrecy, it was impressed upon us at the outset, was imperative, despite the fact that our code name, ALSOS, seemed a give-away, being the Greek translation for Groves. Since General Groves was in complete charge of all Army activities relating to the atom bomb project, the inference did not take too much imagination. To make it even more obvious, the Mission's vehicles had license plates bearing the Greek letter Alpha."
"If only we could get hold of a German atomic physicist, we felt, we could soon find out what the rest of them were up to. To us physicists the problem seemed very simple. Even those of us who were not working on the atom bomb project knew pretty well what was going on over here. No amount of military security could have prevented us from knowing, difficult as it was for the military to understand this. Active scientists engaged in the same general field of research inevitably form a kind of clan; they work closely together and know all about each other's specialities and whereabouts. You can't take a group of key scientists from their accustomed haunts and have them disappear in some remote place in New Mexico, together with their families, without their colleagues who are left behind wondering about it and deriving the right conclusions. The same thing, we knew, would be true of the Germans."
"In short, we knew very little about the German uranium project, and what little we knew we almost invariably interpreted in their favor. In the long run, this was probably all to the good, since it accelerated our own work enormously. But in those days, before the invasion of Europe, we would have given a great deal to know more."
"In my study hangs a fine old horse shoe, which I found in an abandoned Western ghost town. I don't believe in superstitions, but it is supposed to work even for a nonbeliever2. It hasn't so far."
"... I don't like the history of physics, I have always been against the way in which the historians wrote about it in earlier days. Nowadays it is better, someone like Martin Klein, that is real, he brings something new. But the earlier historians always described physics as if it had been done by three and four people and they forgot that these famous people could only do their work because of the many others who also made contributions. ..."
"I did all the problems a little different from the rest of the class."
"We must expect that these German scientists, once they get here, will continually try to defend the actions of Germany before and during the war. Their background and education wiil have supplied them with the necessary arguments. The rocket specialists have at times tried to convince us that they worked on rockets only for the purpose of scientific research. The German atomic scientists, who failed in their attempt to make a bomb, planned to deny that they wanted to make one."
"I spent every night until four in the morning on my dissertation, until I came to the point when I could not write another word, not even the next letter."
"The first thing Bohr said to me was that it would only then be profitable to work with him if I understood that he was a dilettante. The only way I knew to react to this unexpected statement was with a polite smile of disbelief. But evidently Bohr was serious. He explained how he had to approach every new question from a starting point of total ignorance. It is perhaps better to say that Bohr's strength lay in his formidable intuition and insight rather than erudition."
"Progress leads to confusion leads to progress and on and on without respite. Every one of the many major advances … created sooner or later, more often sooner, new problems. These confusions, never twice the same, are not to be deplored. Rather, those who participate experience them as a privilege."
"A number of current theoretical explorations will turn out to be passing fancies..."
"To make a discovery is not necessarily the same as to understand a discovery. Not only Planck but also other physicists were initially at a loss as to what the proper context of the new postulate really was."
"Today we live in the midst of upheaval and crisis. We do not know where we are going, nor even where we ought to be going. Awareness is spreading that our future cannot be a straight extension of the past or the present … The century now approaching its end has been one of indiscriminate violence, it has been perhaps the most murderous one in Western history of which we have record. Yet I would think that what will strike people most when, hundreds of years from now, they will look back on our days is that this was the age when the exploration of space began, the microchip was invented, revolutions in transport and communication virtually annihilated time and distance, transforming the world into a "global village," and relativity theory, quantum mechanics, and the structure of the atom were discovered, in brief that this has been the century of science and technology."
"Of course, relative citation frequencies are no measure of relative importance. Who has not aspired to write a paper so fundamental that very soon it is known to everyone and cited by no one?"
"A new man appears abruptly, the ‘suddenly famous Doctor Einstein.’ He carries the message of a new order in the universe. He is a new Moses come down from the mountain to bring the law and a new Joshua controlling the motion of heavenly bodies..."
"I made a discovery, perhaps known to others but new to me: I need not put myself center stage but can rather place myself at the side, like a Greek chorus. As the curtain rises, I can walk to the center and can speak as follows: I wish to tell you of happenings in the twentieth century, as I witnessed them and reflected upon them. You will see me return to center stage, but only occasionally. Once that imagery had gotten hold of me, I went back to Ida and said yes, I shall try."
"Deliberately or not, every author is of course present in every book he or she writes — even in a scientific text."
"I lived altogether in nine different places while in hiding, because whenever something happened, either someone betrayed the place or something happened to someone who knew where I was, I had to move. The rule of the game was never assume that anybody, however honorable, would be able to stand up under torture. If Mr. X, who knew where I was, was caught for some reason, I should move."
"One of the things I learned, one of the strangest things, is how to think. There was nothing else to do. I couldn't see people, or go for a walk in the forest. All I had was my head and my books, and I thought a lot. I learned, because there was no interruption. I had access to myself, to my thinking. I wouldn't say that I particularly matured. The thinking was physics thinking. I was just short of twenty-two then. I was in hiding for two years and two months, something like that. In all that time I went out very, very little, just once in a great while, after dark. Once I even took the train to Utrecht, forty miles from Amsterdam, with my yellow star, this star which I still have. Why did I go? I just wanted to visit some friends. I was a little bit crazy, a little bit insane."
"One of the absolute rules I learned in the war was, don't know anything you don't need to know, because if you ever get caught they will get it out of you."
"I knew all the time I was going to get through the war. It was completely irrational, a silly idea, but I was not going to lie down and get myself killed. I was going to get out of it."
"I was lucky because the same week that I went to prison the Americans crossed the Rhine and cut off the northern part of Holland, so there was no longer any possibility of being shipped out to a concentration camp. The rail lines were cut. So I was in prison in Amsterdam during the very last days of the war. We were sent to the men's prison and the girls were sent to a women's prison in a different place."
"On the day we were caught, Lion and I had been talking about writing a memorandum on the fate of the Jewish war children living in hiding or among Dutch families … we were the representatives of the Zionist youth organization. … Lion who had been taking notes of the discussion, put these papers in his jacket pocket when he took a break from lunch. When the Germans caught us they discovered his notes. If those papers had been in my pocket I would have never lived to be seventy. I have led a strange life, a set of complete coincidences."
"For several months I was incapable of feeling anything, completely inaccessible to my feelings — I did not laugh, I did not cry. The second thing was this amazing trauma, where I forgot the names of everyone I knew. That was very strange. I knew who everyone was: this was a friend from high school, this was my cousin, but I had to relearn every name. It was quite striking, that very strong reaction that I had. They have a name for it, I think: posttraumatic stress syndrome. I don't sit here conquering great resistance to talk. It is not my way. I don't suffer the reliving of these memories with tremendous pain. It's very odd, but it's finished for me. That, of course, is never quite true. It isn't finished. I am like all of my generation; we are marked people. But I don't suffer; I can talk to you about it. Most of my family was killed. All of my father's and mother's sisters and brothers and their children, my sister and my old grandfather, they're all gone. Four out of five Jews in Holland never came back after the war — 80 percent."
"One of the things I learned, one of the strangest things, is how to think."
"The rule of the game was never assume that anybody, however honorable, would be able to stand up under torture. If Mr. X, who knew where I was, was caught for some reason, I should move."
"To make a discovery is not necessarily the same as to understand a discovery."
"Once I even took the train to Utrecht, forty miles from Amsterdam, with my yellow star, this star which I still have. Why did I go? I just wanted to visit some friends. I was a little bit crazy, a little bit insane"
"Het is voor iemand als ik een heel eigenaardige gewaarwording om in een dagboek te schrijven. Niet alleen dat ik nog nooit geschreven heb, maar het komt me zo voor, dat later noch ik, noch iemand anders in de ontboezemingen van een dertienjarig schoolmeisje belang zal stellen."
"Dealing with this discomfort only involves censoring Anne Frank's diary if you're quite, quite odd. For the rest of us, the answer might be a little more free-flowing boob, some brazen Mooncup sterilisation, hairy legs sprinting through the summer grasses and, to use a pun that is intended as the highest compliment, Frankness about masturbation, sexuality and our bodies. Because it isn't just the Horaleks of this world who teach girls to be shameful rather than celebratory."
"Anne is going through puberty, and she describes her changed vagina in honest detail, saying, "until I was 11 or 12, I didn't realise there was a second set of labia on the inside, since you couldn't see them. What's even funnier is that I thought urine came out of the clitoris." (Oh Anne, we've all been there.) She continues: "In the upper part, between the outer labia, there's a fold of skin that, on second thought, looks like a kind of blister. That's the clitoris." It's beautiful, visceral writing, and it's describing something that most young women experience. And yet I can understand that the junior Ms Horalek would have squirmed and wished herself elsewhere when this was read in class. We live in a society in which young women are taught to be ashamed of the changes that their bodies undergo at puberty – to be secretive about them, and even to pretend that they don't exist. Breasts, the minute they bud, are strapped into harnesses, and the nipples disguised from view. Period paraphernalia must be discreet, with advertisers routinely boasting that their tampons look enough like sweets to circumvent the social horror of discovery. For my generation, removal of post-pubescent hair on the legs and underarms was mandatory. For Ms Horalek's generation, it is mandatory for pubic hair too. Anne writes: "When you're standing up, all you see from the front is hair. Between your legs there are two soft, cushiony things, also covered with hair, which press together when you're standing, so you can't see what's inside." How must reading this feel for pubescent girls who've already internalised the message that they must spend the rest of their lives maintaining the illusion that their body hair doesn't exist."
"Horalek is, of course, wrong to call the passages pornographic. Pornography is material intended to arouse sexual excitement, and I very much doubt that was Anne's intention when she wrote to her imaginary confidant Kitty about her journeys of self-discovery."
"Gail Horalek, the mother of a 7th-grade child in Michigan in the US, has made international headlines by complaining that the unabridged version of Anne Frank's diary is pornographic and should not be taught at her daughter's school. At issue for Horalek is a section detailing Anne's exploration of her own genitalia, material originally omitted by Anne's father, Otto Frank, when he prepared the manuscript for publication in the late 40s I had to look up what age kids are in the 7th grade. They're 12 to 13! They're only about a year younger than Anne was when she wrote of her vagina: "There are little folds of skin all over the place, you can hardly find it. The little hole underneath is so terribly small that I simply can't imagine how a man can get in there, let alone how a whole baby can get out!" There cannot be a 13-year-old girl on the planet who hasn't had a root around and arrived at this exact stage of bafflement."
"Some of us read Anne Frank's diary on Robben Island and derived much encouragement of it."
"One single Anne Frank moves us more than the countless others who suffered just as she did, but whose faces have remained in the shadows. Perhaps it is better that way: If we were capable of taking in the suffering of all those people, we would not be able to live."
"Of the multitude who throughout history have spoken for human dignity in times of great suffering and loss, no voice is more compelling than that of Anne Frank."
"Here's how much people love dead Jews: Anne Frank's diary, first published in Dutch in 1947 via her surviving father, Otto Frank, has been translated into seventy languages and has sold more than 30 million copies worldwide, and the Anne Frank House now hosts well over a million visitors each year"
"Anne Frank's legacy is still very much alive and it can address us fully, especially at a time when the map of the world is changing and when dark passions are awakening within people."
Heute, am 12. Tag schlagen wir unser Lager in einem sehr merkwürdig geformten Höhleneingang auf. Wir sind von den Strapazen der letzten Tage sehr erschöpft, das Abenteuer an dem großen Wasserfall steckt uns noch allen in den Knochen. Wir bereiten uns daher nur ein kurzes Abendmahl und ziehen uns in unsere Kalebassen-Zelte zurück. Dr. Zwitlako kann es allerdings nicht lassen, noch einige Vermessungen vorzunehmen. 2. Aug.
- Das Tagebuch
Es gab sie, mein Lieber, es gab sie! Dieses Tagebuch beweist es. Es berichtet von rätselhaften Entdeckungen, die unsere Ahnen vor langer, langer Zeit während einer Expedition gemacht haben. Leider fehlt der größte Teil des Buches, uns sind nur 5 Seiten geblieben.
Also gibt es sie doch, die sagenumwobenen Riesen?
Weil ich so nen Rosenkohl nicht dulde!
- Zwei außer Rand und Band
Und ich bin sauer!