孔子曰：“益者三友，损者三友。友直，友谅，友多闻，益矣。友便辟，友善柔，友便佞，损矣。”
1Confucius said, 'There are three friendships which are advantageous, and three which are injurious. Friendship with the upright; friendship with the sincere; and friendship with the man of much observation:-- these are advantageous. Friendship with the man of specious airs; friendship with the insinuatingly soft; and friendship with the glib-tongued:-- these are injurious.'