Our brain, our body, craves fat. We cannot help it. That's why a kid will eat a hot dog quicker than a piece of broccoli.

The only thing that we cannot control is our supporters.

But we cannot rely on foreign help indefinitely.

We cannot solve the problem of terrorism by asserting our will on the world.

We cannot experimentally map out the brain. It's just too big. In a piece of the brain the size of a pinhead there are 3,000 pathways like a city with 3,000 streets.

We cannot gamble with American lives. I will not gamble with American lives.