不乾不淨，吃了沒病
bù​gān​bù​jìng​chī​le​méi​bìng

a little dirt never killed anyone

不干不净，吃了没病 不乾不淨，吃了沒病 bù​gān​bù​jìng​chī​le​méi​bìng
a little dirt never killed anyone
A proverb suggesting that a few germs or slightly unhygienic food will not cause illness; similar to the English saying "a little dirt never hurt anyone".