lái ér bù wǎng fēi lǐ yě
not to reciprocate is against etiquette (classical)
to respond in kind
来
lái
to come
而
ér
and
不
bù
no; not so
往
wǎng
to go (in a direction)
非
fēi
abbr. for 非洲[Fei1 zhou1], Africa
礼
lǐ
abbr. for 禮記|礼记[Li3 ji4], Classic of Rites
也
yě
also; too; as well; (not ...) either
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