悲

sad / sadness / sorrow / grief

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

abbr. for 非洲[Fei1 zhou1], Africa

to not be; not / wrong; incorrect / non-; un-; in-; de- / to reproach; to blame / (coll.) to insist on; simply must

lamentable

extreme joy turns to sorrow (idiom); Don't celebrate too soon, things could still go wrong!

sad / sorrowful (literary)

lit. if the rabbit dies, the fox grieves (idiom); fig. to have sympathy with a like-minded person in distress

tragedy of the commons (economics)

phony mercy / sham benevolence / crocodile tears

not to become attached to material things, not to pity oneself

the Great Compassion Mantra

to wail loudly and mournfully (idiom)

if you are lazy in your prime, you'll be sorry in your old age

to try hard to suppress one's grief (idiom)