“I understand you're a common street thief?"Peter bristled. "Hardly a common one.”
“Steal five dollars and you're a common thief. Steal thousands and you're either the government or a hero.”
“Do not imagine that mathematics is hard and crabbed, and repulsive to common sense. It is merely the etherealization of common sense.”
“I don't understand you. You don't understand me. What else do we have in common?”
“Common observation and a plain understanding is the source of all art.”
“You're right, i don't have common sense. I don't want to believe what every one else believes. I have my own thoughts, things that weren't taught to me or things that I didn't read in a book. I learn from experience - you, you are afraid to experience anything and so you will always have your common sense and only your common sense.”