我认为绘画是一种无声的音乐。

Always question your assumptions—that's where the most interesting discoveries often lie.

I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.

The older I get, the more I realize how little I know.