The beauty of a gentleman is not the evil of a villain, but the villain is——Mencius; one cannot be judged as a gentleman by a moment of praise, and a villain cannot be judged by a moment of slander—Feng Menglong; a gentleman It is for profit, to benefit others; for the villain, it is for the benefit - Meng Jiao; the shock waves are no longer in the dark, the villain's heart is full of chaos - Qi Ji; a gentleman and a gentleman are friends with the same path; a villain and a villain are for the same benefit. Be friends - Ouyang Xiu; villains should not be talked to - Xue Xuan; gentlemen and villains have different interests, just between public and private affairs - Zhu Xi; when a gentleman lives in the world, there will be order, but when the villain lives in the world, there will be chaos. A gentleman wants to be harmonious with others, just like water and fire cannot be incompatible with each other. But with the tripod in between, water and fire are not chaotic, but harmonious. Therefore, a gentleman must not choose people carelessly among them - Liu Xiang; The friendship between gentlemen is as light as water, and the villain is as gentle as water. Friendship is as sweet as sweet wine, a gentleman is indifferent to intimacy, and a villain is willing to be rejected - Zhuang Zhou; a gentleman is slandered a lot when he is in a lower position, and he is praised a lot when he is in a superior position; a villain is praised a lot when he is in a lower position, and he is slandered a lot when he is in a superior position - Liu Zongyuan .