“A President either is constantly on top of events or, if he hesitates, events will soon be on top of him. I never felt that I could let up for a single moment.”

“Innovation distinguishes between a leader and a follower.”

“We must adjust to changing times and still hold to unchanging principles.”

“Alone we can do so little; together we can do so much.”

“If you're going to be a leader, you have to be willing to be alone.”