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The goal of mathematics is to make the simple complicated, and the complicated simple.

有錢人說真話有人相信，貧窮人說話別人懷疑不相信。

The best diplomat is one who can see the trends of future developments, not just the realities of the present.

積極情緒不是微不足道的奢侈品，而是最佳功能的關鍵必需品。