Death. An instantaneous state, without past or future. Indispensable for entering eternity.

When war is waged, it is for the purpose of safeguarding or increasing one's capacity to make war. International politics are wholly involved in this vicious cycle. What is called national prestige consists in behaving always in such a way as to demoralize other nations by giving them the impression that, if it comes to war, one would certainly defeat them. What is called national security is an imaginary state of affairs in which one would retain the capacity to make war while depriving all other countries of it.

True definition of science: the study of the beauty of the world.

The poison of skepticism becomes, like alcoholism, tuberculosis, and some other diseases, much more virulent in a hitherto virgin soil.

Human existence is so fragile a thing and exposed to such dangers that I cannot love without trembling.

In this world, only those people who have fallen to the lowest degree of humiliation, far below beggary, who are not just without any social consideration but are regarded by all as being deprived of that foremost human dignity, reason itself - only those people, in fact, are capable of telling the truth. All the others lie.

Contradiction itself, far from always being a criterion of error, is sometimes a sign of truth.