“Do something everyday for no other reason than you would rather not do it, so that when the hour of dire need draws nigh, it may find you not unnerved and untrained to stand the test.”

“There can be no final truth in ethics any more than in physics, until the last man has had his experience and said his say.”

“The best argument I know for an immortal life is the existence of a man who deserves one.”

“The faculty of voluntarily bringing back a wandering attention, over and over again, is the very root of judgment, character, and will... An education which should improve this faculty would be the education par excellence.”

“Time itself comes in drops.”

“Cause and effect are two sides of one fact.”

“The astronomers said, 'Give us matter and a little motion and we will construct the universe. It is not enough that we should have matter, we must also have a single impulse, one shove to launch the mass and generate the harmony of the centrifugal and centripetal forces.' ... There is no end to the consequences of the act. That famous aboriginal push propagates itself through all the balls of the system, and through every atom of every ball.”

“Nor knowest thou what argument Thy life to thy neighbor's creed has lent. All are needed by each one; Nothing is fair or good alone.”