First Age: The Age of Preparation 

第一齡：製備的年齡 

出生、成長學習時期

dependence, socialization, immaturity, and learning

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Second Age: The Age of Achievement

第二齡：成績的年齡 

工作到退休時期

 independence, maturity, responsibility, and working

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Third Age: The Age of Fulfillment – Golden Age

第三年齡：圓滿的年齡 

退休到生命衰退

 personal achievement and fulfillment after retirement

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Fourth Age: The Age of Completion

第四齡：完成的年齡 

生命衰退到生命結束

final dependence, decrepitude, and death

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