A rational man is guided by his thinking - by a process of Reason - not by his feelings and desires.

My pride and my power of vision were all that I owned when I started - and whatever I achieved, was achieved by means of them. Both are greater now. Now I have the knowledge of the superlative value I had missed: of my right to be proud of my vision. The rest is mine to reach.

We are on strike, we, the men of the mind. We are on strike against self-immolation. We are on strike against the creed of unearned rewards and unrewarded duties. We are on strike against the dogma that the pursuit of one's happiness is evil. We are on strike against the doctrine that life is guilt.

A man's ego is the fountainhead of human progress.

To hold an unchanging youth is to reach at the end, the vision with which one started.

It is not as late as you think. It is merely early - in the age of the rebirth of individualism.

Altruism does not mean mere kindness or generosity, but the sacrifice of the best among men to the worst, the sacrifice of virtues to flaws, of ability to incompetence, of progress to stagnation-and the subordinating of all life and of all values to the claims of anyone's suffering.