We can't just do things the way they've always been done; progress demands change.

No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

永远追求卓越，而不是完美。

出自先秦《荀子·非十二子》。尊重贤能的人，是“仁”的表现，鄙视道德不好的人，也是“仁”的表现。说明“仁”正反两个方面的标准。