"Can the word ‘best’ mean anything at all, except to some particular person in some particular mood? Perhaps not — so if we allow the word to stand as an absolute, you, or you, or perhaps you, may be appalled at omissions or inclusions or, never having read me before, may even be impelled to cry out, ‘Good heavens, are those his best?’"

"For man to become successful, for man to establish himself as the ruler of the planet, it was necessary for him to use his brain as something more than a device to make the daily routine of getting food and evading enemies a little more efficient. Man had to learn to control his environment.""

"Inspect every piece of pseudoscience and you will find a security blanket, a thumb to suck, a skirt to hold. What does the scientist have to offer in exchange? Uncertainty! Insecurity!"

"I recognize the necessity of animal experiments with my mind but not with my heart."

"I consider one of the most important duties of any scientist the teaching of science to students and to the general public."

"Throughout history there have been peasant rebellions which have followed always the same course. Blindly, the peasants sacked and destroyed, and when members of the "upper classes" fell into their hands, they killed ruthlessly and cruelly, for never in their lives had they been taught gentleness and mercy by those now in their power."

"Had Hannibal had a government behind him that knew how to exploit victories – had he been born a Roman, for instance – he might have conquered the world."

"It seemed to him https://en.wikipedia.org/wiki/Euphemius_(Sicily) Euphemius it would be a brilliant notion to call in an outside force to fight on his behalf. This same brilliant notion has occurred to participants in civil wars uncounted times in history and it has ended in catastrophe just about every time, since those called in invariably take over for themselves. Of all history's lessons, this seems to be the plainest, and the most frequently ignored."

"It is all too easy to forget that there are emotional motivations in history, as well as economic ones."

"There has never been any custom, however useless it may become with changing conditions, that isn't clung to desperately simply because it is something old and familiar."

"Probably, the most-often-repeated lesson in history is that foreigners who are called in to help one side in a civil war take over for themselves. It is a lesson that seems never to be learned despite endless repetition."

"It is an odd fact that anyone who wishes to start a war must always make it appear that he is fighting in a just cause even if the real motive is naked aggression. Fortunately for the would-be aggressor, a "just cause" is very easy to find."

"We can hope that the ways of peace will attract the Arabic nations, for their territory and opportunities are broad enough for immeasurable advance, if the energies vented in spleen, are turned instead to a modernisation of the technology, a restoration of the soil, and a renovation of the economic, social, and political structure of those great and venerable lands."

"It is by the Imperial Capital that contemporaries (and posterity, too) judge an Empire, and its magnificence impresses them mightily and leads them to judge the Emperor a great man and hero, even though it may all be based on robbery, and though the provinces of the Empire may be sunk in misery."

"[N]o matter how outrageous a lie may be, it will be accepted if stated loudly enough and often enough."

"Religion is more conservative than any other aspect of human life."

"The article was essentially about the coming disappearance of women. I pointed out that the only differences between men and women are the women are smaller and weaker than men, and women have to bear the children, and that all other differences are really social. They are born of the environment. They're not real. [...] You say, "Women are so pure and sweet and nice, if only they have the vote, they would clean up politics." So you give them the vote, and politics is just as dirty as ever. [...] If we get into the 21st century when all the work that's required to be done (and there won't be much of it) doesn't require muscles anyway (it's all a matter of closing contacts, pushing papers, whatever the heck you do), women can do it as well as men. And when it comes to children, there's going to have to be a low birth rate (we'll have to or everything goes 'blooey!'). And in addition, children will be considered, I think, the responsibility of society and not the responsibility of their mothers. Children will be far too valuable to trust to their mothers (most of them are complete incompetents as mothers)."

"In the world of today can there be peace anywhere until there is peace everywhere?"

"Generals are usually a conservative force who can be relied on to oppose social change."

"Often, writers on historical events tend to consider ... a loss of willingness to fight as a sign of "decadence," as though there were something despicable about not being a bully and not being willing to engage in mass murder. Perhaps we ought to feel instead that to cease to be warlike means to begin to be civilized and decent."

"476 ... is usually taken as the date of the "fall of the Roman Empire." The date, however, is a false one. No one at this period of time considered that the Roman Empire had "fallen." Indeed, it still existed and was the most powerful realm in Europe. Its capital was at Constantinople and the Emperor was Zeno. It is only because we ourselves are culturally descended from the Roman west, that we tend to ignore the continued existence of the Roman Empire in the east."

"There is a kind of selective memory that afflicts men when they view the past. They see the good and overlook the evil."

"It seems to be almost an invariable rule that as real power declines, the symbols of power multiply and intensify in compensation."

"[W]hen one plays for top prizes one must be prepared to pay top stakes."

"Indeed, it may well be argued that one reason for the decline in science, art, and literature was the increasing absorption of the better minds into a new sort of intellectual pursuit – theology."

"It is important to remember that the viciousness and wrongs of life stick out very plainly but that even at the worst times there is a great deal of goodness, kindness, and day-to-day decency that goes unnoticed and makes no headlines."

"Start with a planet like the earth, with a complement of simple compounds bound to exist upon it, add the energy of a nearby sun, and you are bound to end with nucleic acids. You can't avoid it."

"I don't believe in flying saucers... The energy requirements of interstellar travel are so great that it is inconceivable to me that any creatures piloting their ships across the vast depths of space would do so only in order to play games with us over a period of decades."

"Private profit is often hidden under a careful coating of great patriotism."

"History is a story without an end."

"[B]y 1204, the only place where the entire body of Greek learning existed, still intact, was Constantinople. As a result of the crusaders' conquest, however, Constantinople was ruthlessly pillaged and destroyed and almost all the great treasures of ancient Greek learning were lost forever. It is because of that sack, for instance, that we have only seven plays left out of the better than one hundred written by Sophocles. The tragedy of 1204 can never be undone and for all of time, only bits and pieces of the marvelous Greek world can be known to us."

"The fact that the general incidence of leukemia has doubled in the last two decades may be due, partly, to the increasing use of x-rays for numerous purposes. The incidence of leukemia in doctors, who are likely to be so exposed, is twice that of the general public. In radiologists … the incidence is ten times greater."

"Ten years on the moon could tell us more about the universe than a thousand years on the earth might be able to."

"Predicting the future is a hopeless, thankless task, with ridicule to begin with and, all too often, scorn to end with."

"Outside intelligences, exploring the Solar System with true impartiality, would be quite likely to enter the Sun in their records thus: Star X, spectral class G0, 4 planets plus debris."

"An observer studying the Solar system dispassionately, and finding himself capable of bringing the four giant planets to his notice, could reasonably say that the Solar system consisted of one star, four planets, and some traces of debris."

"The dullness of fact is the mother of fiction."

"People who want to do so can lose weight most safely and permanently if they realize that above all they must be patient. ... It is better to eat a little less at each meal than impulse would suggest and to do that constantly. Add to this a little more exercise or activity than impulse suggests and keep that up constantly too. A few less calories taken in each day and a few more used up will decrease weight, slowly, to be sure, but without undue misery. And with better long-range results too."

"It is the nature of science that answers automatically pose new and more subtle questions."