"A courageous heart knows that the silence between the notes creates the music."

"Our most basic common link is that we all inhabit this planet. We all breathe the same air. We all cherish our children's future. And we are all mortal."

"We believe that if men have the talent to invent new machines that put men out of work, they have the talent to put those men back to work."

"War will exist until that distant day when the conscientious objector enjoys the same reputation and prestige that the warrior does today."

"I sent American troops to Iraq to make its people free, not to make them American. Iraqis will write their own history and find their own way."

"The perfection of our union, especially our commitment to equality of opportunity, has been a story of constant striving to live up to our Founding principles. This is what Abraham Lincoln meant when he said, 'In giving freedom to the slave, we assure freedom to the free - honorable alike in what we give, and what we preserve.'"

"… conformity is the jailer of freedom and the enemy of growth."

"Radical changes in world politics leave America with a heightened responsibility to be, for the world, an example of a genuinely free, democratic, just and humane society."