“Speak only if it improves upon the silence.”

“If you're going through hell, keep going.”

“The art of being happy lies in the power of extracting happiness from common things.”

“Imagination is the beginning of creation. You imagine what you desire, you will what you imagine and at last you create what you will.”

“Don't sweat the petty things and don't pet the sweaty things.”

“Never complain and never explain.”