Art is a harmony parallel with nature.

[T]reat Nature by the sphere, the cylinder and the cone. . . .

For an impressionist to paint from nature is not to paint the subject, but to realize sensations

Painting from nature is not copying the object; it is realizing one's sensations.

A work of art which did not begin in emotion is not art.

When I judge art, I take my painting and put it next to a God made object like a tree or flower. If it clashes, it is not art.