Don't think about why you question, simply don't stop questioning. Don't worry about what you can't answer, and don't try to explain what you can't know. Curiosity is its own reason. Aren't you in awe when you contemplate the mysteries of eternity, of life, of the marvelous structure behind reality? And this is the miracle of the human mind - to use its constructions, concepts, and formulas as tools to explain what man sees, feels and touches. Try to comprehend a little more each day. Have holy curiosity.

Time is what the clock says.

I refuse to engage in an intellectual battle with an unarmed man.

Without deep reflection one knows from daily life that one exists for other people.

Balance in large measure is knowing the things that can be changed, putting them in proper perspective, and recognizing the things that will not change."

One feels the insignificance of the individual, and it makes one happy.

Man like every other animal is by nature indolent. If nothing spurs him on, then he will hardly think, and will behave from habit like an automaton.