《国语·晋语·叔向论比而不别》
同德同心，遇事互相帮助，这叫做 比 。拉拢同党以自肥，营私利己而忘记君王，这叫做 别 。 
比德以赞事，比也引党以封己，利己而忘君，别也。 
Those who share the same virtue and heart, and help each other when they encounter difficulties, are called 'bi'. Those who form cliques for their own benefit, pursuing private interests and forgetting the sovereign, are called 'bie'.