Who said "The artist must forget what instruments he is using."?

This quote is attributed to Claude Monet.

The artist must forget what instruments he is using. - Claude Monet

"The artist must forget what instruments he is using."

Claude Monet

Impressionist Painter French 1840–1926

"I must have flowers, always, and always."

"Color is my day-long obsession, joy and torment."

"The richness I achieve comes from Nature, the source of my inspiration."

"I am following Nature without being able to grasp her."