生活的目的不是快乐。它是有用的，是光荣的，是富有同情心的，是让你活得有意义并且活得好。
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
"Realism is not about copying nature, but understanding its essence."
The challenge of art is to make the invisible visible.
The elements of consciousness are to be determined by systematic observation.