“The future is not a gift-it is an achievement.”

“One should not pursue goals that are easily achieved. One must develop an instinct for what one can just barely achieve through one’s greatest efforts.”

“Life is a preparation for the future; and the best preparation for the future is to live as if there were none.”

“Peace cannot be kept by force; it can only be achieved by understanding.”

“Only those who attempt the absurd can achieve the impossible.”

“Joy in looking and comprehending is nature's most beautiful gift.”

“The gift of fantasy has meant more to me than my talent for absorbing positive knowledge.”