死并非生的对立面，而作为生的一部分永存。

我们今天划定的伦理界限将塑造明天的科学。

一个社会的真正考验在于它如何对待最脆弱的成员。

She's simply too strange. We can't relate to her, she speaks in a funny way, she comes from an odd place. So we can't relate to her, and when you can't relate to somebody, you don't envy them. The closer two people are -- in age, in background, in the process of identification -- the more there's a danger of envy, which is incidentally why none of you should ever go to a school reunion, because there is no stronger reference point than people one was at school with.

The ocean feeds millions, and it's our duty to ensure it can continue to do so for generations.