求全之毁[qiú quán zhī huǐ] One tries one's best and still gets criticized for it.; the dissatisfaction engendered from the demanding of perfection; try to be perfect only to receive reproaches. 一心想要达到十全十美，结果却遭到诽谤。后来也比喻要求人完美无缺，因为达不到效果而产生不满。 From《孟子》有不虞之誉 有求全之美 e.g 《红楼梦》：既熟惯，便更觉亲密；既亲密，便不免有些不虞之隙，求全之毁。