If nothing is touching the body, there are no forces on it, with one exception which is, of course, gravity.

如果没有实体接触,那么它就不受作用力,当然一个例外那就是引力

耶鲁公开课 - 基础物理课程节选

In the depressed phase, our thinking is narrow; we don't think outside the box usually-- of course there's many exceptions, but as a whole.

在抑郁阶段，我们的思维收窄;,我们失去创造力-,当然有例外，但总体而言没有。

哈佛公开课 - 幸福课课程节选