In science, if the last 50 years were the age of physics, the next 50 years will be the age of biology.

The earth is warming at an alarming rate, we are running out of fossil fuels, and it is long past time for us to take action to correct these problems.

I want to nominate a man who's cool on the outside, but who burns for America on the inside.

Well, first of all, I think that a lot of the voters who are voting for the tea party candidates have really good impulses. That is, they believe that for years and years and years, the people with wealth and power or government power have done well and ordinary people have not. That's true.

We have to change the whole job structure of America. We have got to basically reorient our economy toward the future.

Education is not a privilege, it is a right!

We're not talking about a few rooms here with delicate personal matters involved.