Anything that won’t sell I don’t want to invent, because anything that won’t sell hasn’t reached the acme of success. Its sale is proof of its utility, and utility is success.
All you need in this life is ignorance and confidence, and then Success is sure.
A man cannot be said to succeed in this life who does not satisfy one friend.
A great social success is a pretty girl who plays her cards as carefully as if she were plain.