釋氏要覽 3.229

3.229

孛經云（孛者即佛因中為藍達國王師時名也）孛謂王曰。友有四品。一如華友。謂好時插頭。萎時捐棄於地。見富貴則附。貧困則捨。是也。二如秤友。謂。物重頭低。物輕則仰。有與則敬。無與則慢。是也。三如山友。譬如金山。鳥獸集之。毛羽蒙光。貴能榮人。富樂同歡。是也。四如地友。百穀財物。一切仰之。施給養護。恩厚不德。是也（前二友不可親厚）。

The Scripture of Bo says (Bo was the Buddha's name when he was the royal preceptor to the king of the country of Landan in his causal stage): Bo said to the king: 'Friends are of four kinds: First, like a flower friend—meaning when it is fresh, one sticks it in one's hair, but when it withers, one casts it away on the ground; attaching to one when seeing wealth and status, but abandoning one in poverty and hardship, this is it. Second, like a balance friend—meaning when an object is heavy, the head tilts down, and when the object is light, it tilts up; respectful when receiving something, but disdainful when receiving nothing, this is it. Third, like a mountain friend—for instance, like a golden mountain where birds and beasts gather, their feathers and fur reflecting the radiance; being noble, he can bring glory to others, sharing joy in wealth and happiness, this is it. Fourth, like the earth friend—all the hundred grains and wealth rely on it, giving, providing, nourishing, and protecting, with profound kindness and not considering it a virtue, this is it (the former two friends should not be held dear).'