If history repeats itself, and the unexpected always happens, how incapable must Man be of learning from experience.

There is no human circumstance more tragic than the persisting existence of a harmful condition for which a remedy is readily available. Family planning, to relate population to world resources, is possible, practical and necessary.

My lyrics say I have morals, I have confidence, I have weaknesses, I have strong points, that I am a human being.

The human being is in the most literal sense a political animal, not merely a gregarious animal, but an animal which can individuate itself only in the midst of society.

How little can we foresee the consequences either of wise or unwise action, of virtue or of malice. Without this measureless and perpetual uncertainty, the drama of human life would be destroyed.

Human knowledge consists not only of libraries of parchment and ink - it is also comprised of the volumes of knowledge that are written on the human heart, chiselled on the human soul, and engraved on the human psyche.