“Patience and tenacity are worth more than twice their weight of cleverness.”

“The rung of a ladder was never meant to rest upon, but only to hold a man's foot long enough to enable him to put the other somewhat higher.”

“Science commits suicide when it adopts a creed.”

“The great tragedy of science - the slaying of a beautiful hypothesis by an ugly fact.”

“Science is organized common sense where many a beautiful theory was killed by an ugly fact.”

“Science reckons many prophets, but there is not even a promise of a Messiah.”

“Forever and ever, kid, until you're sick and tired of seeing me.”

“Falling into ruin was a bit like falling in love: Both descents stripped you bare and left you as you were at your core. And both endings are equally painful.”

“Never hold resentments for the person who tells you what you need to hear; count them among your truest, most caring, and valuable friends.”

“The more clearly you understand yourself and your emotions, the more you become a lover of what is.”

“There are only two ways to live your life: as though nothing is a miracle, or as though everything is a miracle.”

“The moral of the tale is, don't live for the approval of others. The real you is here to find out the secret of life, not to satisfy someone else's opinion.”

“We are human only in contact, and conviviality, with what is not human.”

“The problem is this: nature has assembled all these species on this planet. The human species is no more important than any other species on this planet. For some reason, man accorded himself a sup...”

“More than the disappearing trees and roses, its the human tendency to suppress the Natural Voice of the Natures Man which is sorrowful.”