Other Republican candidates may retort to personal attacks and negative ads.

I'm driven with a mission from God. God would tell me, 'George, go and fight those terrorists in Afghanistan.' And I did, and then God would tell me, 'George go and end the tyranny in Iraq,' and I did.

I have faith, as I did when I announced my stem-cell decision in 2001, that science and ethics can coexist.

Humor can be a great way to lift spirits and relate with soon-to-be high school grads. Whether you're in need of a funny senior year quote for a card, your yearbook, or a gift, you can use this list of funny graduation quotes by famous leaders and comedians to get inspired. To those of you who received honors, awards and distinctions, I say well done. And to the C students, I say you too may one day be president of the United States.

The choice is his [Saddam Hussein's]. And if he does not disarm, the United States of America will lead a coalition and disarm him, in the name of peace.

For decades, the public school system failed too many children, so we passed the No Child Left Behind Act and demanded schools show results in return for money.

We reflect on what has been lost and comfort those enduring a profound grief. And somehow we know that a brighter morning will come.