不怪洋葱催人泪故问何必剥它心
[bù guài yáng cōng cuī rén lèi gù wèn hé bì bō tā xīn]
A playful yet profound statement meaning 'no blame on onions for making tears; so why question why its heart was peeled?' This conveys the idea that it's unnecessary to delve deeply into things destined to bring discomfort.