這是一篇包羅萬象的勵誌貼。數學，哲學，心理學，市場學，文學，政治學，經濟學等等。

來源: 影雲於 2022-09-03 05:40:29 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.