以小人之心，度君子之腹 yǐ xiǎorén zhī xīn, dù jūnzi zhī fù

yǐ xiǎorén zhī xīn, dù jūnzi zhī fù phrase to gauge the heart of a gentleman with one's own mean measure
Domain: Proverb 谚语
Notes: (CC-CEDICT '以小人之心，度君子之腹')