我想笑的筋疲力尽，也不要哭的撕心裂肺。

I want to laugh, also don't cry exhausted the tore heart crack lung.

youdao

认识的站左边，不认识的右边，想笑的中间。

Standing on the left, not know right, want to smile.

youdao

我爱哭的时候便哭，想笑的时候便笑，只要这一切出于自然。

I love the time which cries then cries, wants to smile time then smiles, so long as all these stemming from nature.

youdao

Talk about a smile is just a way of talking about the body's ability to smile.

用笑作举例只是想说明,肉体具有笑的能力

耶鲁公开课 - 死亡课程节选

I got interested in this--well, I got interested in this as a developmental psychologist watching my own children laugh and trying to figure out what it is that made them laugh.

我对笑感兴趣…,身为一个长成心理学家,当我看到我孩子笑时，我就对这个议题感兴趣了,我想弄明白是什么令他们笑的。

耶鲁公开课 - 心理学导论课程节选