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 ….

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

To be is to be the value of a variable..

One man's observation is another man's closed book or flight of fancy..

Necessity resides in the way we talk about things, not in the things we talk about..

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 behavior….

Yields falsehood when preceded by its quotation..

Nonbeing must in some sense be, otherwise what is it that there is not? This tangled doctrine might be nicknamed Plato's beard; historically it has p….

Irrefragability, thy name is mathematics..

The totality of our so-called knowledge or beliefs, from the most casual matters of geography and history to the profoundest laws of atomic physics o….

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 se….

Implication is thus the very texture of our web of belief, and logic is the theory that traces it..

Creatures inveterately wrong in their inductions have a pathetic but praise-worthy tendency to die before reproducing their kind..

To define an expression is, paradoxically speaking, to explain how to get along without it. To define is to eliminate..

We must not leap to the fatalistic conclusion that we are stuck with the conceptual scheme that we grew up in. We can change it, bit by bit, plank by….

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

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

I have been accused of denying consciousness but I am not conscious of having done so..

Language is a social art..

It is within science itself, and not in some prior philosophy, that reality is to be identified and described..

Logic chases truth up the tree of grammar..