A gentleman is ignorant of himself, but trusts in his close friends. - Sima Qian

In addition to the concept of disinterest, mutual respect seems to be another key point of friendship. - Moroa

Associating with non-virtuous people will inevitably lead to love and hatred. - Meng Jiao

If good people are together, they will hear good advice every day; if evil people are around, evil feelings will arise every day. - Fan Ye