Cultivate an ever-continuous power of observation. Wherever you are, be always ready to make slight notes of postures, groups and incidents.

A person with normal eyesight would have nothing to know in the way of 'Impressionism' unless he were in a blinding light or in the dusk or dark.

You can't do sketches enough. Sketch everything and keep your curiosity fresh.

Impressionism' was the name given to a certain form of observation when Monet, not content with using his eyes to see what things were or what they looked like as everybody had done before him, turned his attention to noting what took place on his own retina (as an oculist would test his own vision).

I don't dig beneath the surface for things that don't appear before my own eyes.

An artist painting a picture should have at his side a man with a club to hit him over the head when the picture is finished.

Every time I paint a portrait I lose a friend.