Imagine waking up every morning and saying to yourself: "I refuse to accept the law of gravity.

想象每天早上醒来后对自己说：,“我拒绝接受万有引力定律。

哈佛公开课 - 幸福课课程节选

Imagine if an aeronautics engineer : woke up in the morning and said, "you know,the Law of Gravity thing really makes things difficult for me.

试想一下，如果一个航空工程师,在早上醒来，说，“万有引力,真的带给我很多麻烦。

哈佛公开课 - 幸福课课程节选