"The impediment to action advances action. What stands in the way becomes the way."

"Fools! not to be able to reflect how many things a man may gain by means of not saying and doing what is useful to himself, and how few things by saying and doing what is useful to himself."

"You could leave life right now. Let that determine what you do and say and think."

"To live happily is an inward power of the soul, and is not to be sought for from external things."

"If a man is able to show me that I do not think or act right, I will gladly change; for I seek the truth, by which no man was ever injured. But he is injured who abides in his error and ignorance."