论语。子罕。

子绝四 -- 毋意，毋必，毋固，毋我。

孔子没有四种毛病 -- 不悬空揣测，不绝对肯定，不拘泥固执，不唯我独是。

Confucius never has this four shortcoming -- never guess without reason, never confirms absolutely, never stubborn, never ego and selfish.