The scientist is indistinguishable from the common man in his sense of evidence, except that the scientist is more careful.

Unscientific man is beset by a deplorable desire to have been right. The scientist is distinguished by a desire to be right.

Irrefragability, thy name is mathematics.

Students of the heavens are separable into astronomers and astrologers as readily as the minor domestic ruminants into sheep and goats, but the separation of philosophers into sages and cranks seems to be more sensitive to frames of reference.

Science is not a substitute for common sense, but an extension of it.

Some may find comfort in reflecting that the distinction between an eliminative and an explicative physicalism is unreal.

One man's antinomy is another man's falsidical paradox, give or take a couple of thousand years.