Tā yīshí qǐ le xiéniàn, zuò chū le hòuhuǐ zhōngshēng de shìqíng.
A wicked thought arose in him for a moment, and he did something he would regret for life.
Xiūshēn yǎngxìng, kèzhì xiéniàn, shì gǔdài jūnzǐ xiūliàn de mùbiāo.
Self-cultivation and restraining evil thoughts were the goals of the ancient gentleman's practice.