“We did not choose to be the guardians of the gate, but there is no one else.”

“We can draw lessons from the past, but we cannot live in it.”

“If future generations are to remember us with gratitude rather than contempt, we must leave them more than the miracles of technology. We must leave them a glimpse of the world as it was in the beginning, not just after we got through with it.”

“Don't Spit in the Soup, We All Gotta Eat”

“If one morning I walked on top of the water across the Potomac River, the headline that afternoon would read "President Can't Swim.”

“Education is not a problem. Education is an opportunity.”

“While you're saving your face, you're losing your ass.”