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純粹自然狀態的條件...是每個人對每個人的戰爭狀態。

The function of mental processes is to mediate between the needs of the organism and the demands of the environment.

自由貿易使得資源得以最優配置。

"The silence between words is as important as the words themselves; it is where the unsaid resides."

在數學中，提出問題的藝術必須比解決問題更有價值。