... two men could be just alike in all their dispositions to verbal behavior under all possible sensory stimulations, and yet themeanings or ideas expressed in their identically triggered and identically sounding utterances could diverge radically, for the two men, in a wide range of cases.

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

Language is a social art.

To be is to be the value of a variable.

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

Our talk of external things, our very notion of things, is just a conceptual apparatus that helps us to foresee and control the triggerings of our sensory receptors in the light of previous triggering of our sensory receptors.

Life is what the least of us make the most of us feel the least of us make the most of.