The finest emotion of which we are capable is the mystic emotion. Herein lies the germ of all art and all true science. Anyone to whom this feeling is alien, who is no longer capable of wonderment and lives in a state of fear is a dead man.

Nature conceals her secrets because she is sublime, not because she is a trickster.

Agreements about what is good or not, are usually not worth much. It is very much like art, is it not an art to lead a good life?

Curiosity is its own reason.

Engineering is not only study of 45 subjects but it is moral studies of intellectual life. Make things as simple as possible..but not simpler.

A life directed chiefly toward the fulfillment of personal desires will sooner or later always lead to bitter disappointment.

But without deeper reflection one knows from daily life that one exists for other people--first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy.