"Experience does not err. Only your judgments..." - Quote by Leonardo Da Vinci

“You do ill if you praise, but worse if you censure, what you do not understand.”

“When you are alone you are all your own.”

“The greatest deception men suffer is from their own opinions.”

“These young guys are playing checkers. I'm out there playing chess.”

“I have already lived and enjoyed as much life as any nine other men I have known.”

“When the most important things in our life happen we quite often do not know, at the moment, what is going on. A man does not always say to himself, "hullo! i'm growing up." It is only when he looks back that he realises what has happened and recognises it as what people call "growing up.”

“I am no indiscriminate novel reader. The mere trash of the common circulating library I hold in the highest contempt.”

“Advice is judged by results, not by intentions.”

“One must not let oneself be misled: they say 'Judge not!' but they send to Hell everything that stands in their way.”