The man who has never made a mistake will never make anything else.

The novelties of one generation are only the resuscitated fashions of the generation before last.

Absolute honesty is as absurd an abstraction as an absolute temperature or an absolute value.

If 'Pygmalion' is not good enough for your friends with its own verbal music, their talent must be altogether extraordinary.

Audacious ribald: your laughter will finish in hideous boredom before morning.

Go on writing plays, my boy, One of these days one of these London producers will go into his office and say to his secretary, "Is there a play from Shaw this morning?" and when she says, "No," he will say, "Well, then we'll have to start on the rubbish." And that's your chance, my boy.

Remember that you are a human being with a soul and the divine gift of articulate speech: that your native language is the language of Shakespeare and Milton and The Bible; and don't sit there crooning like a bilious pigeon.