Long before being nerdy was cool, there was Leonard Nimoy. Leonard was a lifelong lover of the arts and humanities, a supporter of the sciences, generous with his talent and his time. And of course, Leonard was Spock. Cool, logical, big-eared and level-headed, the center of Star Trek’s optimistic, inclusive vision of humanity’s future. I loved Spock.

Owes unions who endorsed him; that's why he's in politics.

No other advanced nation endures this kind of violence. None. Here in America, the murder rate is three times what it is in other developed nations. The murder rate with guns is ten times what it is in other developed nations. And there's nothing inevitable about it. It comes about because of decisions we make or fail to make. And it falls upon us to make it different.

And as husbands and fathers and brothers, we have to step up - because every girl’s life matters. Every daughter deserves the same chance as our sons. Every woman should be able to go about her day - to walk the streets or ride the bus - and be safe, and be treated with respect and dignity. She deserves that.

Let's remember that our leadership is defined not just by our defence against threats, but by the enormous opportunities to do good and promote understanding.

Never read Who Moved My Cheese in the workplace when you can read The Joy of Not Working.

I have been to this point unwilling to sign on to same-sex marriage primarily because of my understandings of the traditional definitions of marriage. But I also think you're right that attitudes evolve, including mine.