To have ideas one must have imagination. To express ideas one must have science.

Count on big lines to express your ideas.

There is weakness in pretending to know more than you know or in stating less than you know.

Educate yourself. Don't let me educate you

Art tends toward balance, order, judgment of relative values, the laws of growth, the economy of living – very good things for anyone to be interested in.

The sketch hunter moves through life as he finds it, not passing negligently the things he loves, but stopping to know them, and to note them down in the shorthand of his sketchbook.

An artist must first of all respond to his subject, he must be filled with emotion toward that subject and then he must make his technique so sincere, so translucent that it may be forgotten, the value of the subject shining through it.