There are known knowns; there are things we know we know. We also know there are known unknowns; that is to say we know there are some things we do not know. But there are also unknown unknowns - the ones we don't know we don't know.

Certainty without power can be interesting, even amusing. Certainty with power can be dangerous.

Don't 'over-control' like a novice pilot. Stay loose enough from the flow that you can observe it, modify, and improve it.

You can have a broad popular democracy movement and have it end being taken over by the most vicious people and the result is you don't end up with free political systems or free economic systems, you end up with a handful of radicals controlling the country.

The country cannot afford amateur hour in the White House.

Imagine, a September 11 with weapons of mass destruction. It's not 3,000. It's tens of thousands of innocent men, women and children.

Freedom's untidy, and free people are free to make mistakes and commit crimes and do bad things.