From the very beginning of his education, the child should experience the joy of discovery.

No one who achieves success does so without acknowledging the help of others. The wise and confident acknowledge this help with gratitude.

The art of progress is to preserve order amid change and to preserve change amid order.

If a dog jumps into your lap, it is because he is fond of you; but if a cat does the same thing, it is because your lap is warmer.

There are no whole truths: All truths are half-truths.

Not ignorance, but ignorance of ignorance, is the death of knowledge.

Religion is the last refuge of human savagery.

Philosophy begins in wonder. And, at the end, when philosophic thought has done its best, the wonder remains.

...the self-satisfied dogmatism with which mankind at each period of its history cherishes the delusion of the finality of existing modes of knowledge.

Knowledge shrinks as wisdom grows.

Symbolism is no mere idle fancy or corrupt degeneration: it is inherent in the very texture of human life.

Mathematics expresses values that reflect the cosmos, including orderliness, balance, harmony, logic, and abstract beauty.

Personal relationship with God is the main condition for quality in life.

I cannot stress this enough: do not take powerful hallucinogens before going to a Holocaust memorial.

It's gratifying to know that you've appeared in someone else's dreams. It's proof that you exist, in a way, proof that you have substance and value outside the walls of your own mind.

We are the "can do" country. We adjust to situations better than any people in the history of the world... We adjust to change.

Success is like a mountain that keeps growing ahead of you as you hike it... Err in the direction of kindness.

I don't think you ever leave Star Trek for good.

A contemplative life has more the appearance of a life of piety than any other; but it is the divine plan to bring faith into activity and exercise.

Jewish men don't know anything.

Read books. They are good for us.