The question is not whether you would like to be president or not. The question is: Do you think you can win and do you want to run? And none of those are clear to me.

We are taught to understand, correctly, that courage is not the absence of fear, but the capacity for action despite our fears.

Russia is a gas station masquerading as a country.

I am fully prepared to be commander in chief... I don't need on-the-job training.

Courage is the enforcing virtue, the one that makes possible all the other virtues common to exceptional leaders: honesty, integrity, confidence, compassion and humility

Washington is a Hollywood for ugly people. Hollywood is a Washington for the simpleminded.

Why is Chelsea Clinton so ugly? Because her father is Janet Reno.

Fear is the opportunity for courage, not proof of cowardice.

The core political values of our free society are so deeply embedded in our collective consciousness that only a few malcontents, lunatics generally, ever dare to threaten them.

I believe in evolution. But I also believe, when I hike the Grand Canyon and see it at sunset, that the hand of God is there also.

Thank God for our form of government. The media won't let there be any cover-up.

Admiration is the daughter of ignorance.

All writers have roots they draw from - travel, work, family. My roots are in science and it is fertile ground for fiction.

I definitely am a huge lover of comedy, and it's only through doing so many comedies that I've realised how much of an influence they've been on me.

When you cast somebody, you write to their strengths.

NASA is developing space taxis to shuttle astronauts to the International Space Station. And just like New York taxis, they're all going to be driven by aliens.

People say law but they mean wealth.

I do not need some guy around in order to get inspiration, in order to make a great record, in order to live my life, in order to feel okay about myself. And I wanted to show my fans the same thing.

It is a remarkable thing that some of the most optimistic and enthusiastic people you will meet are those who have been through intense suffering.

Another goal is to look to the resources we have and to see how we could do better to plan, in a sense, for the faculty and infrastructure that we will need to study Asia well into the 21st century.

A well-trained, sensible doctor is one of the most valuable assets of a community.