What can be said can and should always be said more and more simply and clearly.

I do not believe in what is often called... 'exact terminology'... or in definitions... they do not... add to exactness... I especially dislike pretentious terminology and... pseudo-exactness concerned with it.

I have no faith in precision: ...simplicity and clarity are values in themselves, but not... [of] precision or exactness...

Never aim at more precision than... required by the problem...

The doctrine that there is as much science in a subject as... mathematics in it, or as much... measurement or 'precision' in it, rests upon... misunderstanding.

I... believe in the rationalist tradition of a commonwealth of learning, and in the urgent need to preserve this tradition.

The history of mankind could... be described as a history of outbreaks of fashionable philosophical and religious maladies. These... have... one serious function... evoking criticism.

Scientific theories are distinguished from myths... in being criticizable, and... open to modifications... They can be neither verified nor probabilified.

Diversity makes critical argument fruitful. ...[P]artners in an argument must share ...the wish to know, and the readiness to learn from the other ...by severely criticizing his views... and hearing... [the] reply. ...the so-called method of science consists in this kind of criticism.

By 'arguing...' I mean... criticizing... inviting... criticism; and trying to learn from it.