My body is constantly changing because the relationships between my arms and my head and so forth. My muscles are moving.

我的身体在不断改变,因为我的胳膊和脑袋的关系等等,我的肌肉在动。

耶鲁公开课 - 死亡课程节选

Being a very small part of that, and part of changing our scale from where we constantly see ourselves as the most important thing in the universe, to suddenly being just a tiny piece.

我们只是宇宙的渺小的一员，我们应当改变我们的观念,不应将自己看做是,宇宙中最重要的，我们只是微小的尘埃。

普林斯顿公开课 - 人性课程节选

This particle is constantly changing its direction, but it therefore has an acceleration and the acceleration, we have shown here, is pointing towards the center.

这个质点恒定地改变它的运动方向,因此它具有加速度,而且这个加速度,我们前面也讲过了,指向圆心

耶鲁公开课 - 基础物理课程节选