First, I worry about climate change. It's the only thing that I believe has the power to fundamentally end the march of civilization as we know it, and make a lot of the other efforts that we're making irrelevant and impossible.

I came of age believing that, no matter what happened, I would always be able to support myself.

The United States is too big and we are too involved with too many people for any president to be able to take actions that will be universally agreed to all day, every day and everywhere in the world.

The purpose of affirmative action is to give our nation a way to finally address the systemic exclusion of individuals of talent on the basis of their gender, or race from opportunities to develop, perform, achieve and contribute. Affirmative action is an effort to develop systematic approach to open the doors of education, employment, and business development opportunities to qualified individuals who happen to be members of groups that have experienced long-standing and persistent discrimination.

I can spend your money better than you can.

When Galileo discovered he could use the tools of mathematics and mechanics to understand the motion of celestial bodies, he felt, in the words of one imminent researcher, that he had learned the language in which God recreated the universe. Today we are learning the language in which God created life. We are gaining ever more awe for the complexity, the beauty, the wonder of God's most devine and sacred gift.

There are two kinds of people in the world. Those who have seen the Taj Mahal and love it and those who have not seen the Taj and love it.