To believe in something not yet proved and to underwrite it with our lives: it is the only way we can leave the future open. Man, surrounded by facts, permitting himself no surmise, no intuitive flash, no great hypothesis, no risk, is in a locked cell. Ignorance cannot seal the mind and imagination more surely.

When you stop learning, stop listening, stop looking and asking questions, always new questions, then it is time to die.

The question in crisis or ordeal is not: Are you going to be an extremist? The question is: What kind of extremist are you going to be?

Man, born of woman, has found it a hard thing to forgive her for giving him birth. The patriarchal protest against the ancient matriarch has borne strange fruit through the years.

Segregation is evil; there is no pattern of life which can dehumanize men as can the way of segregation.

The point of life is to find the delicate equilibrium between dream and reality.

To believe in something not yet proved and to underwrite it with our lives: it is the only way we can leave the future open. Man, surrounded by facts, permitting himself no surmise, no intuitive flash, no great hypothesis, no risk, is in a locked cell. Ignorance cannot seal the mind and imagination more surely.