If you injure your neighbour, better not do it by halves.

This is the true joy of life-the being used for a purpose recognized by yourself as a mighty one, the being thoroughly worn out before you are thrown to the scrap-heap; the being a force of nature instead of a feverish, selfish clod of ailments and grievances.

It is dangerous to be sincere unless you are also stupid.

A man learns to skate by staggering about and making a fool of himself. Indeed he progresses in all things by resolutely making a fool of himself.

The only service a friend can really render is to keep up your courage by holding up to you a mirror in which you can see a noble image of yourself.

Most of my recent plays were written in the railway train between Hatfield and Kings Cross. I write anywhere, on the top of omnibuses or wherever I may be; it is all the same to me.

I never climbed any ladder: I have achieved eminence by sheer gravitation.