如果每天骑自行车可以让你更健康，为什么不承诺每天坚持骑车，过上更健康的生活呢？

If cycling each day can make you healthier, why not commit yourself to it and have a better life?

youdao

你知道什么是决心吗？它是一种承诺。

Do you know what a resolution is? It's a kind of promise.

youdao

你上次承诺了什么？

What did you promise last time?

youdao

Well what can you do? Well you can promise miracles, there's very little control over these sorts of things, you can distort the science, you can lie about what you do and nobody will come after you.

那么你会做什么呢,你可以承诺奇迹,这很难给予控制,你可以歪曲科学,你可以说谎,隐瞒你的作为,也没有人会找你麻烦

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选