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You can never know anyone as completely as you want.

Economics is at its best when it helps us solve real-world problems in a rigorous and transparent way.

譯文：現在我嘗盡了憂愁的滋味，想說卻又最終咽下。想說卻又咽下，只能感嘆一句 “天氣涼爽好個秋天”!

The biggest weapon on the court is your mind.

選自漢·桓寬《鹽鐵論·申韓》。從事治學的人，需要廣泛的閱讀，并且需要從中吸取正確、有用的內容。

Sustainability is not an option; it's a necessity for the future of mining.

I think that the role of the mathematician is to discover these patterns and to explain them.