Tā yìshí tānxīn shōu le huìlù, zhēnshì yì shīzú chéng qiāngǔ hèn, yúshēng dōu zài hòuhuǐ.
In a moment of greed he took a bribe; one slip, and he spent the rest of his life regretting it.
Tips
usage
A warning before a risky choice, or a sigh of regret after one. 失足 "to lose one's footing" also means to go astray morally, and 千古 "through the ages" makes the regret endless.
