Anyone who fights for the future, lives in it today.

Truth is the recognition of reality; reason, man's only means of knowledge, is his only standard of truth.

I need no warrant for being, and no word of sanction upon my being. I am the warrant and the sanction.

In proportion to the mental energy he spent, the man who creates a new invention receives but a small percentage of his value in terms of material payment, no matter what fortune he makes, no matter what millions he earns. But the man who works as a janitor in the factory producing that invention, receives an enormous payment in proportion to the mental effort that his job requires of him. And the same is true of all men between, on all levels of ambition and ability.

These are the things before me. And as I stand here at the door of glory, I look behind me for the last time. I look upon the history of men, which I have learned from the books, and I wonder. It was a long story, and the spirit which moved it was the spirit of man’s freedom. But what is freedom? Freedom from what? There is nothing to take a man’s freedom away from him, save other men. To be free, a man must be free of his brothers. That is freedom. This and nothing else.

Censorship' is a term pertaining only to governmental action. No private action is censorship. No private individual or agency can silence a man or suppress a publication; only the government can do so. The freedom of speech of private individuals includes the right not to agree, not to listen and not to finance one's own antagonists.

Genius is an exaggeration of dimension. So is elephantiasis. Both may be only a disease.