The essential function of art is moral.

The only limits in life are those you impose on yourself.

Happiness in this world, when it comes, comes incidentally. Make it the objet of pursuit, and it leads us a wild-goose chase, and is never attained. Follow some other object, and very possibly we may find that we have cought happiness without dreaming of it.

戏剧是向观众提出的一个问题。