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.

“If the stars should appear one night in a thousand years, how would men believe…”

“Cut these words and they would bleed; they are vascular and alive.”

“Do your work, and I shall know you. Do your work, and you shall reinforce yours…”

“I found when I had finished my new lecture that it was a very good house, only …”