I tell people not to do their best. I don't know when that started. Quite a while ago. Because I . . . when they're doing their best I don't get their best. So I try to persuade them to be average. Because if you're wonderful and you're average, you're still wonderful. If you're a bad improviser and you're average, you're what you are.

Enjoy things even when you’re screwing up.

If you have a good idea, open your mouth and say something else.

The best laughs are on the recognition of truth.

I mean, in the foreword to Impro in Denmark is by Søren Iversen, who I taught long ago, he was a Danish director, after he left. He said he'd read about [Eugeny] Vakhtangov. I'm a fan of his. When he heard that Vakhtangov had lots of tricks, he thought this was very bad. But when he came to be my student, he realised it was very good to have a lot of tricks. You saw some this morning.

In life most of us are highly skilled at suppressing action. Bad improvisers block action often with a high degree of skill. Good improvisers develop action.

At school any spontaneous act was likely to get me into trouble. I learned never to act on impulse, and that whatever came into my mind first should be rejected in favour of better ideas. I learned that my imagination Wasn’t ‘good’ enough. I learned that the first idea was unsatisfactory because it was (1) psychotic; (2) obscene; (3) unoriginal. The truth is that the best ideas are often psychotic, obscene and unoriginal.