All too often, our elegant political theories amount to nothing more than ideology triumphing over common sense.

You can do anything…but before you can do anything, you have to do something.

Sometimes, if your opponent is determined to win the battle, let him win the wrong battle.

Regarding war and peace—the seed of each is planted in the other.

Regarding war and peace—the seeds of each are planted in the other.

We recognize authority based on whether we feel we could attain authority by the rules by which the authority was obtained.

Cooler heads prevail while things spin completely out of control.

Note from Alien cookbook: “The more intelligent the human is, the better it tastes.

If you can’t be brave in the face of adversity, at least be practical.

Amazing how too much passion in one part of your life can destroy passion in other parts of your life.

If someone tells you that they’re called “blueberries” because they’re berries and they’re blue—believe them.

Never waste any amount of time doing anything important when there is a sunset outside that you should be sitting under!

Leaders inspire the people around them to become better.

The formula was simple: E + F + C = M. That is, excitement plus fatigue, plus confusion equals mistakes.

Your life is influenced by the energy you bring to every moment.

I take classified materials very seriously and always have.

I liken an affair to the shattering of a Waterford crystal vase. You can glue it back together, but it will never be the same again.

I like to feel that every day or most days, I do a little bit of writing. I am a creature of habit in terms of the way I live.

The pointless ferocities of intellectual life shock businessmen, who kill only to eat.

What's important to me is that I put messages out, whether it's a TED talk, whether it's a book.

Deftly they opened the brain of a child, and it was full of flying dreams.