“If you try and take a cat apart to see how it works, the first thing you have on your hands is a non-working cat.”

“If opportunity doesn't knock, build a door.”

“Truth is the silliest thing under the sun. Try to get a living by the Truth and go to the Soup Societies. Heavens! Let any clergyman try to preach the Truth from its very stronghold, the pulpit, and they would ride him out of his church on his own pulpit bannister.”

“You have to let go of who you were to become who you will be.”

“Everyone thinks of changing the world, but no one thinks of changing himself.”

“The virtues, like the Muses, are always seen in groups. A good principle was never found solitary in any breast.”