And the aeronautics engineer who wants to build an airplane has to obey, take into consideration, learn it, study and understand the law of gravity.

航空航天工程师,想制造飞机，必须遵守，加以考虑，学习，研究理解万有引力定律。

哈佛公开课 - 幸福课课程节选

It doesn't have every potential, it's a boy or a girl, it's not going to go back, but it has lots of potential in that eventually when it becomes an adult it could become a cellist, or a biologist, or an auto mechanic, or a biomedical engineer, all those potentials are still there.

但不是全部,比如性别已有定论,无法改变,但还是有很多潜能,当孩子长大,他可以成为大提琴家,生物学家,机械师或者生物医学工程师,他仍有所有的潜能

耶鲁公开课 - 生物医学工程探索课程节选