be a lesson of little worth; not fit to serve as a model; not to be taken as an example; not an example to be followed; not to be taken as authoritative
❍ 任何人都不是圣人，他所作所为总有～之处。Nobody is a sage. What he does can’t always be an example to be followed.
不足为训bù zú wéi xùn
训：准则。不值得作为遵循的准则或效仿的榜样。not to be taken as an example, not to be taken as authoritative, not an example to be followed, not fit to serve as a model