No moral system can rest solely on authority.

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…

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…

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…

Also aber rathe ich euch, meine Freunde: misstraut Allen, in welchen der Trieb, zu strafen, machtig ist! Das ist Volk schlechter Art und Abkunft; aus ihren Ges…

The great fault of all ethics hitherto has been that they believed themselves to have to deal only with the relations of man to man. In reality, however, the q…

Entendia que ha larga ponderacao de males e bens, e que a arte de viver consiste em tirar o maior bem do maior mal.