It reflects no great honor on a painter to be able to execute only one thing well -- such as a head, an academy figure, or draperies, animals, landscapes, or the like -- in other words, confining himself to some particular object of study. This is so because there is scarcely a person so devoid of genius as to fail of success if he applies himself earnestly to one branch of study and practices it continually.

True and great love springs out of great knowledge, and where you know little you can love but little or not at all.

You must grow in patience when you meet with great wrongs, and they will then be powerless to vex your mind.

The good painter must paint two things: a person and the essence of his soul.

Ask counsel of him who rules himself well.

Abbreviators do harm to knowledge and to love.

Principles for the Development of a Complete Mind: Study the science of art. Study the art of science. Develop your senses- especially learn how to see. Realize that everything connects to everything else.