当你知道他们不能触摸的，原来是你的心，太伤感。

And it's sad when you know its your heart they can't touch.

youdao

我们不能触摸通过眼门显现的可见对象，只能看见它。

A visible object, that which appears through the eye door, can't be touched, it can only be seen.

youdao

一些东西，在内心深处，不能到达，不能触摸，只属于你的。希望。

There are something inside that they can't get to, they can't touch. It's yours. Hope.

youdao

The child just touches and sees, but doesn't yet reason.

儿童只是触摸和观看,但还不能进行逻辑推理

耶鲁公开课 - 心理学导论课程节选