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Success is not the key to happiness. Happiness is the key to success.

To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates.

譯文：每天都要糾正自己的過錯。如果哪天沒有發(fā)現(xiàn)過失，那就會自以為是；如果每天都覺得無過錯，那就會寸步難進。天下聰明俊秀的人才不少，他們之所以不去努力地培養(yǎng)德行，擴大事業(yè)，是因為受了得過且過的思想影響，耽誤終生。