If now I:say 'Stealing money is wrong,' I produce a sentence which has no factual meaning - that is, expresses no proposition which can be either true or false. It is as if I had written 'Stealing money!!' - where the shape and thickness of the exclamation marks show, by a suitable convention, that a special sort of moral disapproval is the feeling which is being expressed.

The criterion which we use to test the genuineness of apparent statements of fact is the criterion of verifiability. We say that a sentence is factually signif…

No moral system can rest solely on authority.

There never comes a point where a theory can be said to be true. The most that one can claim for any theory is that it has shared the successes of all its riva…

Who can give law to lovers? Love is a greater law to itself.

We become obsessed with 'truth' when discussing statements, just as we become obsessed with 'freedom' when discussing conduct...Like freedom, truth is a bare m…

The whole sense of the book might be summed up the following words: what can be said at all can be said clearly, and what we cannot talk about we must pass ove…