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No man really knows about other human beings. The best he can do is to suppose that they are like himself.

Change is good. Change is progress. Without change, nothing would ever improve.

朗蘭茲綱領是對探索數學未知領域的邀請。

山溪里的水隨著季節常漲常退，不明事理的小人反復無常。

最大的挑戰是畫出無法被畫出的東西。

We have a responsibility, every one of us. We may think we live a long way from the oceans, but we don't. What we actually do here, has a direct effect on the oceans—and what the oceans do then reflects back on us.