fàng xià tú dāo, lì dì chéng fó
放 下 屠 刀， 立 地 成 佛

The butcher who lays down his knife, at once becomes a Buddha.

解释 ( paraphrase )
放下屠宰牲畜的刀子再不干了，立刻就能成为修行圆满的人了。
这条谚语告诉我们：即使是作恶多端的人，只要诚心悔改，从此以后再不干坏事，就可以成为一个好人。

This proverb tells us that even an evildoer can become a good person as long as he sincerely repents and earnestly reforms himself.

同义词 ( synonym )
苦海无涯，回头是岸

造句 ( example )
我错了，我要放下屠刀，立地成佛。