Hitherto man had to live with the idea of death as an individual; from now onward mankind will have to live with the idea of its death as a species.

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.

...the cosmology of a given age is not the result of unilinear, "scientific" development, but rather the most striking, imaginative symbol of its mentality- the projection of its conflicts, prejudice and specific ways of double-think onto the graceful sky.

Habit is the denial of creativity and the negation of freedom; a self-imposed straitjacket of which the wearer is unaware.

The more original a discovery, the more obvious it seems afterwards.

The Régime did not want Communists; it wanted robots. It will take at least a generation to change them back into humans again.