If Pizza sizes were given in area not diameter, you'd see instantly that a 7 inch is less than half the size of a 10 inch pie

I think the best thing a parent can do, when raising a child, is simply get out of their way.

One thing in life is for certain, the more profoundly baffled you have been in your life, the more open your mind becomes to new ideas.

One should not be too distracted by definitions. Ideas transcend definitions.

I know of no time in human history where ignorance was better than knowledge.

Too many people view on [space exploration] as a luxury rather than as a fundamental driver to stimulate interest in science to everyone in the educational pipeline. It's vital to our prosperity and security.

I don't have an issue with what you do in the church, but I'm going to be up in your face if you're going to knock on my science classroom and tell me they've got to teach what you're teaching in your Sunday school. Because that's when we're going to fight.