Correct
害人之心不可有，防人之心不可无
/ hài rén zhī xīn bùkě yǒu, fáng rén zhī xīn bùkě wú /
Strokes
Definition
refrain from hurting others, yet guard against those trying to hurt you (proverb)
Example
Definition
one should never intend to do harm to others, nor should one forget to guard against the harm others might do to him