Light in Nature creates the movement of colors.

Art in Nature is rhythmic and has a horror of constraint.

Our understanding is correlative to our perception.

Direct observation of the luminous essence of nature is for me indispensable

It is this research into pure painting that is the problem at the present moment. I do not know any painters in Paris who are really searching for this ideal world.

The eye is the most refined of our senses, the one which communicates most directly with our mind, our consciousness.

I am very much afraid of definitions, and yet one is almost forced to make them. One must take care, too, not to be inhibited by them.