I believe marriage is between a man and a woman. I am not in favor of gay marriage. But when you start playing around with constitutions just to prohibit somebody who cares about another person it just seems to me that's not what America's about. Usually our constitutions expand liberties they don't contract them.

Virtue is like precious odours - most fragrant when they are incensed or crushed.

One whose knowledge is confined to books, and whose wealth is in the possession of others, can use neither his knowledge, nor wealth, when the need for them arises.

I wont eat anything green

In 2010 my two Harvard mathematician colleagues and I dismantled kin-selection theory which was the reigning theory of the origin of altruism at the time.