The only reason I send a single young man or woman in uniform anywhere in the world is because I think it's necessary to keep us safe.

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.

172. Understanding who you are within creates invisible changes in a man’s character

My soul sings joyful praise to the Holy one.

A city is not adorned by external things, but by the virtue of those who dwell in it.

Science has not yet taught us if madness is or is not the sublimity of the intelligence.

That's the big mistake the environmental movement made - 'We'll scare the hell out of you, and you'll become an activist'.

The rich people are those who create wealth, and you have to treat them well so they continue to give wealth.

I don't think we're going to build a 50-person spacecraft or a 100-person spacecraft.

Faithfulness and sincerity first of all.

There can be no healing without truth.

Others may know pleasure, but pleasure is not happiness. It has no more importance than a shadow following a man.