He went out and saw his mum in the trees, in the clouds, or when the birds were singing.

他走出去，看到自己的母亲,在树上，在云里，在鸟儿的歌声中。

普林斯顿公开课 - 人性课程节选

It's something like liner notes or a performance history of the cosmos' greatest singing group ever.

就像插画一样,或者是世间最大的合唱队的表演。

耶鲁公开课 - 弥尔顿课程节选