Containing this entry
| 前事不忘，後事之師 | qiánshìbùwàng,hòushìzhīshī | don't forget past events, they can guide you in future (idiom); benefit from past experience |
| 吃水不忘挖井人 | chīshuǐbùwàngwājǐngrén | see 吃水不忘掘井人 chīshuǐbùwàngjuéjǐngrén |
| 吃水不忘掘井人 | chīshuǐbùwàngjuéjǐngrén | Drinking the water of a well, one should never forget who dug it. (idiom) |
| 念念不忘 | niànniànbùwàng | to keep in mind constantly (idiom) |
| 永志不忘 | yǒngzhìbùwàng | never to be forgotten |