“Noble deeds that are concealed are most esteemed.”

“When we wish to correct with advantage, and to show another that he errs, we must notice from what side he views the matter, for on that side it is usually true.”

“The war existing between the senses and reason.”

“Since we cannot know all that there is to be known about anything, we ought to know a little about everything.”

“All is one, all is different. How many natures exist in man? How many vocations? And by what chance does each man ordinarily choose what he has heard praised?”

“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.”