If the creator has a purpose in equipping us with a neck, he surely would have meant for us to stick it out.

Every creative act – in science, art, or religion – involves a regression to a more primitive level, a new innocence of perception liberated from the cataract of accepted beliefs.

Man's destiny was no longer determined from 'above' by a super-human wisdom and will, but from 'below' by the sub-human agencies of glands, genes, atoms, or waves of probability. ...they could determine his fate, but could provide him with no moral guidance, no values and meaning. A puppet of the Gods is a tragic figure, a puppet suspended on his chromosomes is merely grotesque.

Honor is decency without vanity.

The prerequisite of originality is the art of forgetting, at the proper moment, what we know.

In my youth I regarded the universe as an open book, printed in the language of equations, whereas now it appears to me as a text written in invisible ink, of which in our rare moments of grace we are able to decipher a small segment.

The progress of science, like an ancient desert trail, is strewn with the bleached skeletons of discarded theories, doctrines, and axioms which seemed to possess eternal life.