但是一个人可以孤独的快乐并且这可能是和他人一同快乐的关键所在。

But one can be happy alone and this might even be the key to being happy with others.

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你偶尔可以看见那个研究野生花草的孤独身影。

You could see the occasional solitary figure making a study of wildflowers or grasses.

《柯林斯英汉双解大词典》

此外，共情能力可以用来治愈孤独和悲伤。

Besides, empathy can be a cure for loneliness and sadness.

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