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Text Details
幾何列出了某些概念,如“飛機”,“點”和“直線”,是我們能夠副或多或少明確的想法,和一些簡單的命題(公理),其中在憑藉這些想法,我們傾向於接受“真的。”然後,在此基礎上合乎邏輯的過程中,理由是我們認為我們不得不承認,所有剩餘的命題顯示遵循這些公理,即它們被證明。
— Relativity: The Special and General Theory (相對論:特別和一般理論)
(book)
by Albert Einstein
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