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Play is the language of childhood, and books should speak that language too.
成就伟业的唯一途径就是热爱自己的事业。
市场瞬息万变,唯有以变应变才能立于不败之地。
"He who has a why to live can bear almost any how."
Every mathematical problem has a solution; the challenge is finding it.
了解自己的一个好办法是,仔细地分析自己做的会惹怒其他人的每一件事情。