Specifically, the part where in the early 19th century America reconstituted the U.S. Marine Corps to battle the Islamic Barbary Pirates, though I don't think that's what Obama meant.

You can’t let your failures define you. You have to let your failures teach you.

Change will not come if we wait for some other person or some other time. We are the ones we've been waiting for. We are the change that we seek.

Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

When ignorant folks want to advertise their ignorance, you don't really have to do anything, you just let them talk.

Just because we have the best hammer does not mean that every problem is a nail.

Change is never easy, but always possible.

Don’t ever let anybody tell you that your efforts don’t matter or that your voice doesn’t count. Don’t ever believe that you can’t make a difference. You have.

Where you are right now doesn't have to determine where you'll end up.

Learning to stand in somebody else's shoes, to see through their eyes, that's how peace begins. And it's up to you to make that happen. Empathy is a quality of character that can change the world.

If somebody is different from you, that's not something you criticize, that's something that you appreciate.

Sins, like chickens, come home to roost.

Grace flows through wounds.

I am not as these are, the poet saithIn youth's pride, and the painter, among menAt bay, where never pencil comes nor pem

I'm the curvy one of the family.

Every opponent is a new opponent. Trust me, they don't give a crap how many matches I have won.

If a tax cut increases government revenues, you haven't cut taxes enough.

I haven't, in the 23 years that I have been in the uniformed services of the United States of America, ever violated an order - not one.

The story of mankind began in a garden and ended in revelations.

How does Galdoila know about the reward?" i asked. "He reads the signs," Grover said. "Duh." "Of course," I said. "Silly me.

Most people can tire of a lecture in fifteen minutes, clever people can do it in five, and sensible people don't go to lectures at all.