1.平時不做虧心事,夜半敲門心不驚。
A clear conscience can bear any trouble.
2.一朝被蛇咬,十年怕井繩。
A burnt child dreads the fire.
3.明槍易躲,暗箭難防。
etter the devil you know than the devil you don't know.
4.人不為己,天誅地滅。
Every man for himself, and the devil take the hindmost.
5.一失足成千古恨,再回首已百年身。
A little neglect may breed great mischief.