Leon Trotsky

"Old age is the most unexpected of things that can happen to a man."

Benjamin Franklin

"Three may keep a secret, if two of them are dead."

Yogi Berra

"Baseball is 90% mental, the other half is physical."

Mark Twain

"Always do right. This will gratify some people and astonish the rest."

Sir William Bragg

"The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them."