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現代采石必須將地質學的智慧與工程的創新相結合。

自然的簡單性不應以我們對簡單性的概念來衡量。

If you want to be the best, you have to do things that other people aren’t willing to do.

"A journey is a person in itself; no two are alike. And all plans, safeguards, policing, and coercion are fruitless. We find after years of struggle that we do not take a trip; a trip takes us."

"Emotions exist for the sake of action."

要將一個國家從最低級的野蠻狀態帶到最高度的富裕，所需的幾乎只有和平、低稅收和較為合理的司法管理。