The region of the mysterious is rapidly shrinking.

The very bulk of scientific publications is itself delusive. It is of very unequal value; a large proportion of it, possibly as much as three-quarters, does not deserve to be published at all, and is only published for economic considerations which have nothing to do with the real interests of science.

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.

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.

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.

All that glitters may not be gold, but at least it contains free electrons.

Published papers may omit important steps and the memory of men of science, even the greatest, is sadly fallible.