Great art must be guided by an invisible technique; it must seem the spontaneous blossom of the moment's mood and impulse.

Improvisation is the essence of good talk. Heaven defend us from the talker who doles out things prepared for us! But let heaven not less defend us from the beautifully spontaneous writer who puts his trust in the inspiration of the moment!

The individual never asserts himself more than when he forgets himself.

We never do anything well till we cease to think about the manner of doing it. This is the reason why it is so difficult for any but natives to speak a language correctly or idiomatically.

Too much improvisation leaves the mind stupidly void.