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.

Yields falsehood when preceded by its quotation.

Some have said that the thesis [of indeterminacy] is a consequence of my behaviorism. Some have said that it is a reductio ad absurdum of my behaviorism. I disagree with this second point, but I agree with the first. I hold further that the behaviorism approach is mandatory. In psychology one may or may not be a behaviorist, but in linguistics one has no choice.

Logic is an old subject, and since 1879 it has been a great one.

Confusion of sign and object is original sin coeval with the word.

My position is a naturalistic one; I see philosophy not as an a priori propaedeutic or groundwork for science, but as continuous with science. I see philosophy and science as in the same boat--a boat which, to revert to Neurath's figure as I so often do, we can rebuild only at sea while staying afloat in it. There is no external vantage point, no first philosophy.