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

In England, more than in any other country, science is felt rather than thought. ... A defect of the English is their almost complete lack of systematic thinking. Science to them consists of a number of successful raids into the unknown.

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

The problem [of specialization] is essentially that of communications to an army in action. After a rapid advance communications become disorganized, and there is a temporary halting until they are again in working order.

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 relevance of Marxism to science is that it removes it from its imagined position of complete detachment and shows it as a part, but a critically important part, of economy and social development.

Hunger and sex still dominate the primitive mammalian side of human existence, but at the present time it looks as if humanity were within sight of their satisfaction. Permanent plenty, no longer a Utopian dream, awaits the arrival of permanent peace.