A good painter is to paint two main things, men and the working of man's mind.

The most praiseworthy form of painting is one that most resembles what it imitates.

The men of experiment are like the ant; they only collect and use. But the bee . . . gathers its materials from the flowers of the garden and of the field, but transforms and digests it by a power of its own.

The natural desire of good men is knowledge.

Learning never exhausts the mind

Learning never exhausts the mind.