But that means, if we think something's missing, we then have to ask yourselves, ? what's missing?

但是，如果我们认为它不完美，那么我们必须问问自己，到底缺少了什么东西？

耶鲁公开课 - 死亡课程节选

It's a book that wants to be beautiful, that's happy to be beautiful.

这是一本心心念念着要使自己完美，并且也乐于使自己完美的书。

耶鲁公开课 - 现代诗歌课程节选

When I talked about mitosis, I talked about cells making perfect copies of each other, so each parent cell becoming two daughter cells that are the same.

我讲有丝分裂的时候,谈到过细胞能够完美的复制自己,母细胞分裂成为,两个完全一样的子细胞

耶鲁公开课 - 生物医学工程探索课程节选