"In a world of complex threats, our security and leadership depends on all elements of our power - including strong and principled diplomacy."

"That's the good thing about being president, I can do whatever I want."

"It was not a religion that attacked us that September day. It was al-Qaeda. We will not sacrifice the liberties we cherish or hunker down behind walls of suspicion and mistrust."

"Of course, there is no question that Libya - and the world - will be better off with Gaddafi out of power. I, along with many other world leaders, have embraced that goal, and will actively pursue it through non-military means. But broadening our military mission to include regime change would be a mistake."

"To reign is worth ambition though in hell: Better to reign in hell, than serve in heav'n."

"When ambition meets humility, we find that the legacy we leave is written in the hearts of others."

"When ambition meets humility, we find that the river of time shapes the stones of destiny."

"When ambition meets humility, we find that the mind is a garden where thoughts are the seeds."