Nobel Laureates From The United States

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April 10, 2026

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April 10, 2026

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"All experiments in psychology are not of this [cargo cult] type, however. For example there have been many experiments running rats through all kinds of mazes, and so on — with little clear result. But in 1937 a man named Young did a very interesting one. He had a long corridor with doors all along one side where the rats came in, and doors along the other side where the food was. He wanted to see if he could train rats to go to the third door down from wherever he started them off. No. The rats went immediately to the door where the food had been the time before.The question was, how did the rats know, because the corridor was so beautifully built and so uniform, that this was the same door as before? Obviously there was something about the door that was different from the other doors. So he painted the doors very carefully, arranging the textures on the faces of the doors exactly the same. Still the rats could tell. Then he thought maybe they were smelling the food, so he used chemicals to change the smell after each run. Still the rats could tell. Then he realized the rats might be able to tell by seeing the lights and the arrangement in the laboratory like any commonsense person. So he covered the corridor, and still the rats could tell.He finally found that they could tell by the way the floor sounded when they ran over it. And he could only fix that by putting his corridor in sand. So he covered one after another of all possible clues and finally was able to fool the rats so that they had to learn to go to the third door. If he relaxed any of his conditions, the rats could tell.Now, from a scientific standpoint, that is an A-number-one experiment. That is the experiment that makes rat-running experiments sensible, because it uncovers the clues that the rat is really using — not what you think it's using. And that is the experiment that tells exactly what conditions you have to use in order to be careful and control everything in an experiment with rat-running.I looked into the subsequent history of this research. The next experiment, and the one after that, never referred to Mr. Young. They never used any of his criteria of putting the corridor on sand, or of being very careful. They just went right on running rats in the same old way, and paid no attention to the great discoveries of Mr. Young, and his papers are not referred to, because he didn't discover anything about rats. In fact, he discovered all the things you have to do to discover something about rats. But not paying attention to experiments like that is a characteristic of cargo cult science."

- Richard Feynman

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"There is one feature I notice that is generally missing in cargo cult science. … It's a kind of scientific integrity, a principle of scientific thought that corresponds to a kind of utter honesty — a kind of leaning over backwards. For example, if you're doing an experiment, you should report everything that you think might make it invalid — not only what you think is right about it; other causes that could possibly explain your results; and things you thought of that you've eliminated by some other experiment, and how they worked—to make sure the other fellow can tell they have been eliminated. Details that could throw doubt on your interpretation must be given, if you know them. You must do the best you can — if you know anything at all wrong, or possibly wrong — to explain it. If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it. There is also a more subtle problem. When you have put a lot of ideas together to make an elaborate theory, you want to make sure, when explaining what it fits, that those things it fits are not just the things that gave you the idea for the theory; but that the finished theory makes something else come out right, in addition. In summary, the idea is to try to give all of the information to help others to judge the value of your contribution; not just the information that leads to judgement in one particular direction or another."

- Richard Feynman

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"Western civilization, it seems to me, stands by two great heritages. One is the scientific spirit of adventure — the adventure into the unknown, an unknown which must be recognized as being unknown in order to be explored; the demand that the unanswerable mysteries of the universe remain unanswered; the attitude that all is uncertain; to summarize it — the humility of the intellect. The other great heritage is Christian ethics — the basis of action on love, the brotherhood of all men, the value of the individual — the humility of the spirit. These two heritages are logically, thoroughly consistent. But logic is not all; one needs one's heart to follow an idea. If people are going back to religion, what are they going back to? Is the modern church a place to give comfort to a man who doubts God — more, one who disbelieves in God? Is the modern church a place to give comfort and encouragement to the value of such doubts? So far, have we not drawn strength and comfort to maintain the one or the other of these consistent heritages in a way which attacks the values of the other? Is this unavoidable? How can we draw inspiration to support these two pillars of western civilization so that they may stand together in full vigor, mutually unafraid? Is this not the central problem of our time?"

- Richard Feynman

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"(Would you have taken the same position against the Republicans if that party had been in power in 1914?) AP: Of course. You see, we tried very hard in 1916—wasn’t it [[Charles Evans Hughes|[Charles Evans] Hughes]] running against Wilson that year?—to get the Republicans to put federal suffrage in their platform, and we failed. We also failed with the Democrats. Then we tried to get the support of Mr. Hughes himself. Our New York State committee worked very hard on Mr. Hughes, and they couldn’t budge him. So we went to see former President [Theodore] Roosevelt at his home at Oyster Bay to see if he could influence Mr. Hughes. And I remember so vividly what Mr. Roosevelt said. He said, “You know, in political life you must always remember that you not only must be on the right side of a measure, but you must be on the right side at the right time.” He told us that that was the great trouble with Mr. Hughes, that Mr. Hughes is certainly for suffrage, but he can’t seem to know that he must do it in time. So Mr. Hughes started on his campaign around the country, and when he came to Wyoming, where women were already voting, he wouldn’t say he was for the suffrage amendment. And he went on and on, all around the country. Finally, when he came to make his final speech of the campaign in New York, he had made up his mind, and he came out strongly for the federal suffrage amendment. So it was true what Mr. Roosevelt had said about him."

- Theodore Roosevelt

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"I am not attempting here a full appreciation of Colonel Roosevelt. He will be known for all time as one of the great men of America. I am only giving you this personal recollection as a little contribution to his memory, as one that I can make from personal knowledge and which is now known only to myself. His conversation about birds was made interesting by quotations from poets. He talked also about politics, and in the whole of his conversation about them there was nothing but the motive of public spirit and patriotism. I saw enough of him to know that to be with him was to be stimulated in the best sense of the word for the work of life. Perhaps it is not yet realised how great he was in the matter of knowledge as well as in action. Everybody knows that he was a great man of action in the fullest sense of the word. The Press has always proclaimed that. It is less often that a tribute is paid to him as a man of knowledge as well as a man of action. Two of your greatest experts in natural history told me the other day that Colonel Roosevelt could, in that department of knowledge, hold his own with experts. His knowledge of literature was also very great, and it was knowledge of the best. It is seldom that you find so great a man of action who was also a man of such wide and accurate knowledge. I happened to be impressed by his knowledge of natural history and literature and to have had first-hand evidence of both, but I gather from others that there were other fields of knowledge in which he was also remarkable."

- Theodore Roosevelt

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"The most unpardonable sin in society is independence of thought. That this should be so terribly apparent in a country whose symbol is democracy, is very significant of the tremendous power of the majority. [...] Evidently we have not advanced very far from the condition that confronted Wendell Phillips. Today, as then, public opinion is the omnipresent tyrant; today, as then, the majority represents a mass of cowards, willing to accept him who mirrors its own soul and mind poverty. That accounts for the unprecedented rise of a man like Roosevelt. He embodies the very worst element of . A politician, he knows that the majority cares little for ideals or integrity. What it craves is display. It matters not whether that be a dog show, a prize fight, the lynching of a "nigger," the rounding up of some petty offender, the marriage exposition of an heiress, or the acrobatic stunts of an ex-president. The more hideous the mental contortions, the greater the delight and bravos of the mass. Thus, poor in ideals and vulgar of soul, Roosevelt continues to be the man of the hour. On the other hand, men towering high above such political pygmies, men of refinement, of culture, of ability, are jeered into silence as mollycoddles. It is absurd to claim that ours is the era of individualism. Ours is merely a more poignant repetition of the phenomenon of all history: every effort for progress, for enlightenment, for science, for religious, political, and economic liberty, emanates from the minority, and not from the mass. Today, as ever, the few are misunderstood, hounded, imprisoned, tortured, and killed."

- Theodore Roosevelt

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"It was often said that Roosevelt craved the limelight, that he set out to be, as one observer put it, "the bride at every wedding, the corpse at every funeral." The youngest man to become president, he was also the most energetic, zestful chief executive up to that time. Unlike many of his predecessors, he delighted in being president and was sorry to see his term end. He was fearless, decisive, ambitious, proud, and irresistibly charming to men and women alike. He loved children and often took time to romp with them or gather them round for a story. A gifted raconteur, he captivated listeners with tales of his adventures out West. He detested dirty jokes, however, and typically walked away in the middle of a story as soon as he detected its off-color nature. Whether delivering speeches before large crowds or engaged in a private conversation, Roosevelt spoke forcefully in crisp, clipped tones and gesticulated constantly, his fist pounding the air to emphasize a point, his head jerking to and fro with each word. But he was also a good listener, capable of remaining stock still for extended periods totally engrossed in the words of others. He had a prodigious, apparently photographic memory. He often stunned visitors by reciting whole passages of a book he had read decades before. He explained that with concentrated the page seemed to appear in his mind's eye and he simply read from it."

- Theodore Roosevelt

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"You remember that, at the close of Theodore Roosevelt's second term as President, he went over to Africa to make war on some of his ancestors. You remember that, at the close of his expedition, he visited the capitals of Europe; and that he was wined and dined, dignified and glorified by all the Kaisers and Czars and Emperors of the Old World. He visited Potsdam while the Kaiser was there; and, according to the accounts published in the American newspapers, he and the Kaiser were soon on the most familiar terms. They were hilariously intimate with each other, and slapped each other on the back. After Roosevelt had reviewed the Kaiser's troops, according to the same accounts, he became enthusiastic over the Kaiser's legions and said: “If I had that kind of an army, I could conquer the world.” He knew the Kaiser then just as well as he knows him now. He knew that he was the Kaiser, the Beast of Berlin. And yet, he permitted himself to be entertained by that Beast of Berlin; had his feet under the mahogany of the Beast of Berlin; was cheek by jowl with the Beast of Berlin. And, while Roosevelt was being entertained royally by the German Kaiser, that same Kaiser was putting the leaders of the Socialist Party in jail for fighting the Kaiser and the Junkers of Germany. Roosevelt was the guest of honor in the white house of the Kaiser, while the Socialists were in the jails of the Kaiser for fighting the Kaiser. Who then was fighting for democracy? Roosevelt? Roosevelt, who was honored by the Kaiser, or the Socialists who were in jail by order of the Kaiser? “Birds of a feather flock together.” ... If Theodore Roosevelt is the great champion of democracy —the arch foe of autocracy , what business had he as the guest of honor of the Prussian Kaiser? And when he met the Kaiser, and did honor to the Kaiser, under the terms imputed to him, wasn't it pretty strong proof that he himself was a Kaiser at heart? Now, after being the guest of Emperor Wilhelm, the Beast of Berlin, he comes back to this country, and wants you to send ten million men over there to kill the Kaiser; to murder his former friend and pal. Rather queer, isn't it? And yet, he is the patriot, and we are the traitors. I challenge you to find a Socialist anywhere on the face of the earth who was ever the guest of the Beast of Berlin, except as an inmate of his prison—the elder Liebknecht and the younger Liebknecht, the heroic son of his immortal sire."

- Theodore Roosevelt

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