“A great many people mistake opinions for thought.”

“A banker is a person who is willing to make you a loan if you present sufficient evidence to show you don't need it.”

“A visitor from Mars could easily pick out civilized nations. They have the best implements of war.”

“It is so shocking to find out how many people do not believe that they can learn, and how many more believe learning to be difficult.”

“I hope that while so many people are out smelling the flowers, someone is taking the time to plant some.”

“When you imagine mistakes, there can be no self-defense.”

“Nature does not make mistakes. Right and wrong are human categories.”