The experience of being in space didn't change my perspective of myself or of the planet or of life. I had no spiritual experience.

Sureness is something like a neck brace, which we clamp around our lives, hoping to somehow protect ourselves from the frightening, constant whiplash of change. Sadly, the brace doesn't always hold.

As somebody who, in my second marriage, insisted on a prenuptial agreement, I can also testify that sometimes it is an act of love to chart the exit strategy before you enter the union, in order to make sure that not only you, but your partner as well, knows that there will be no World War III should hearts and minds, for any sad reason, change.

In politics there are some candidates who use change to promote their careers, and then there are those like John McCain who use their careers to promote change.

If you want to change the way your banking system is regulated, if you want to learn the mistakes of what's gone wrong, then you have to change your government.