Love is not a promissory note.

One of the things that's crucial to me about love is that it has to be in the moment.

One of the things that makes the uncertainty of death so difficult for us is that we could be involved in a project and then, suddenly, it's cut off. And it's cut off in the midst of our involvement, so that we don't have a chance to see it through, to accomplish what we might accomplish.

If you're immortal, you can imagine being sad or grieving if a lover leaves you. But if everyone were immortal, then that leaving isn't necessarily forever. There's always a chance that you get them back somewhere down the road - you know, in 5, 10, 20,000 years. So I think that the urgency of the moment gets sapped.

I don't want to say that the creativity would give out - I can't imagine what argument I would bring forward for that. But I think that there's something on the individual level that's a limitation.

Different development itself runs the threat of making life shapeless.