The modern man thinks that everything ought to be done for the sake of something else, and never for its own sake.

A priori Logical propositions are such as can be known a priori without study of the actual world.

Citizens as conceived by governments are persons who admire the status quo and are prepared to exert themselves for its preservation. Oddly enough, while all governments aim at producing men of this type to the exclusion of all other types, their heroes in the past are of exactly the sort that they aim at preventing in the present. Americans admire George Washington and Jefferson, but imprison those who share their political opinions.

Is there any knowledge in the world which is so certain that no reasonable man could doubt it?

The three main extra-rational activities in modern life are religion, war, and love. all these are extra-rational, but love is not anti-rational, that is to say, a reasonable man may reasonably rejoice in its existence

In action, in desire, we must submit perpetually to the tyranny of outside forces; but in thought, in aspiration, we are free, free from our fellowmen, free from the petty planet on which our bodies impotently crawl, free even, while we live, from the tyranny of death.

Be isolated, be ignored, be attacked, be in doubt, be frightened, but do not be silenced.