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I stand up for what I believe in, and I don’t worry about what others think.

君子有三種快樂，但稱王天下不在其中。父母都健在，兄弟沒有災禍，這是第一種快樂；抬頭無愧于天，低頭無愧于人，這是第二種快樂；得到天下的優秀人才而教育他們，這是第三種快樂。

The Erd?s discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.

定義屬于下定義的人，而不屬于被定義的人。

Rent is that portion of the produce of the earth which is paid to the landlord for the use of the original and indestructible powers of the soil.

True innovation comes from a deep understanding of user needs.