“The young man knows the rules, but the old man knows the exceptions.”

“To live a pure unselfish life, one must count nothing as one's own in the midst of abundance.”

“Never let your schooling interfere with your education.”

“And it must follow, as the night the day, thou canst not then be false to any man.”

“Every day I try to be in communication with the universe in an unconscious way.”

“We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.”