No burden is so heavy for a man to bear as a succession of happy days.
对一个人来说，最沉重的负担莫过于一连串幸福的日子。
-- Max Planck 马克斯·普朗克
No burden is so heavy for a man to bear as a succession of happy days.
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No burden is so heavy for a man to bear as a succession of happy days.
对一个人来说，最沉重的负担莫过于一连串幸福的日子。
-- Max Planck 马克斯·普朗克
