The fruits of Christianity were religious wars, butcheries, crusades, inquisitions, extermination of the natives of America, and the introduction of African slaves in their place.
Men are a thousand times more intent on becoming rich than on acquiring culture, though it is quite certain that what a man IS contributes more to his happiness than what he HAS.
True brevity of expression consists in a man only saying what is worth saying, while avoiding all diffuse explanations of things which every one can think out for himself.
Students and scholars of all kinds and of every age aim, as a rule, only at information, not insight. They make it a point of honour to have information about everything, every stone, plant, battle, or experiment and about all books, collectively and individually. It never occurs to them that information is merely a means to insight, but in itself is of little or no value.
To free a man from error is to give, not to take away. Knowledge that a thing is false is a truth. Error always does harm; sooner or later it will bring mischief to the man who harbors it.
And yet, just as our body would burst asunder if the pressure of the atmosphere were removed from it, so would the arrogance of men expand, if not to the point of bursting then to that of the most unbridled folly, indeed madness, if the pressure of want, toil, calamity and frustration were removed from their life. One can even say that we require at all times a certain quantity of care or sorrow or want, as a ship requires ballast, in order to keep on a straight course.
For, after all, the foundation of our whole nature, and, therefore, of our happiness, is our physique, and the most essential factor in happiness is health, and, next in importance after health, the ability to maintain ourselves in independence and freedom from care.
Truth is no harlot who throws her arms round the neck of him who does not desire her; on the contrary, she is so coy a beauty that even the man who sacrifices everything to her can still not be certain of her favors.
Happiness belongs to those who are sufficient unto themselves. For all external sources of happiness and pleasure are, by their very nature, highly uncertain, precarious, ephemeral and subject to chance.