The search for truth is more precious than its possession.

The pursuit of truth and beauty is a sphere of activity in which we are permitted to remain children all our lives.

So many people today — and even professional scientists — seem to me like someone who has seen thousands of trees but has never seen a forest. A knowledge of the historic and philosophical background gives that kind of independence from prejudices of his generation from which most scientists are suffering. This independence created by philosophical insight is — in my opinion — the mark of distinction between a mere artisan or specialist and a real seeker after truth. Letter to Robert A. Thorton, Physics Professor at University of Puerto Rico (7 December 1944).

One has a feeling that one has a kind of home in this timeless community of human beings that strive for truth. … I have always believed that Jesus meant by the Kingdom of God the small group scattered all through time of intellectually and ethically valuable people.

I have never looked upon ease and happiness as ends in themselves — such an ethical basis I call more proper for a herd of swine. The ideals which have lighted me on my way and time after time given me new courage to face life cheerfully, have been Truth, Goodness, and Beauty. Without the sense of fellowship with men of like mind, of preoccupation with the objective, the eternally unattainable in the field of art and scientific research, life would have seemed to me empty. The ordinary objects of human endeavour — property, outward success, luxury — have always seemed to me contemptible.

Measured objectively, what a man can wrest from Truth by passionate striving is utterly infinitesimal. But the striving frees us from the bonds of the self and makes us comrades of those who are the best and the greatest.

Ethical axioms are found and tested not very differently from the axioms of science. Truth is what stands the test of experience.