"A happy childhood is poor preparation for human contacts."

"You will do foolish things, but do them with enthusiasm."

"It is wise to apply the oil of refined politeness to the mechanisms of friendship."

"Total absence of humor renders life impossible."

"The true traveler is he who goes on foot, and even then, he sits down a lot of the time."

"I love my past. I love my present. I'm not ashamed of what I've had, and I'm not sad because I have it no longer."

"No man deserves punishment for his thoughts."

"No one else can speak the words on your lips Drench yourself in words unspoken Live your life with arms wide open Today is where your book begins The rest is still unwritten"

"A lie would have no sense unless the truth were felt as dangerous."

"Man can learn nothing unless he proceeds from the known to the unknown."

"I contend that we are both atheists. I just believe in one fewer god than you do. When you understand why you dismiss all the other possible gods, you will understand why I dismiss yours."

"An optimist is a man who has never had much experience."