Well, first of all, you may not survive for long, if you truly don't accept the fact that things, people being no exception fall when left in mid-air.

首先，你可能活不长，如果你不接受，人会从半空中掉下来的事实。

哈佛公开课 - 幸福课课程节选

If you have a brain, and a body, and a metabolism that wants calories, it wants fat, it wants sugar, it wants a broad variety of food so you can survive, that would be good if you lived in certain parts of the world today.

如果你有大脑,有身体,有新陈代谢,这些都需要能量,就需要脂肪,需要糖,需要极其多样食物,你才能活下来,世界上只有部分地区可以保证这些

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选