The psychology of a complex mind must differ almost as much from that of a simple, mechanized mind as its psychology would from ours; because something that must underlie and perhaps be even greater than sex is involved.

We will have to give up taking things for granted, even the apparently simple things.

The full area of ignorance is not mapped. We are at present only exploring the fringes.

Naturalism aimed at giving the primitive wishes full play but failed because these wishes are too primitive, too infantile, too inconsistent with themselves to be satisfied even by the greatest license.

We are still too close to the birth of the universe to be certain about its death.

The recognition of the art that informs all pure science need not mean the abandonment for it of all present art, rather it will mean the completion of the transformation of art that has already begun.

It is characteristic of science that the full explanations are often seized in their essence by the percipient scientist long in advance of any possible proof.