“Biology will relate every human gene to the genes of other animals and bacteria, to this great chain of being.”

“You've got to either say you're going to cut taxes and find some spending cuts. I think we ought to reform long-term entitlement spending in the country, but you can't out of one side of your mouth say, 'Yes, we're for tax cuts, we're for spending discipline, and we're for bringing down the debt.'”