"I don't carry the burden of the past or the madness of the future. I live in the present."

"I can resist everything except temptation."

"Sarcasm is the lowest form of wit but the highest form of intelligence."

"A little knowledge is a dangerous thing. Drink deep, or taste not the Pierian spring."

"Non-violence is the law of our species as violence is the law of the brute."

"Angry people are not always wise."