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唯一值得稱道的自由是追求我們自己的利益的自由方式，只要我們不試圖剝奪別人的利益或妨礙他們獲得自己的利益。

A good abstraction is one that emphasizes the essential and suppresses the irrelevant.

The beauty of science lies in its ability to explain the natural world through observation and experimentation.

聽到了卻沒有親眼見到，即使聽得再多，也必有謬誤；親眼見到了卻不能理解，即使記得再多，也必有錯誤；知道了卻不去實際踐行，就是知識再多，也必然困惑。

The trick is not to learn to trust your gut feelings, but rather to discipline yourself to ignore them.

The stupid believe that to be truthful is easy; only the artist, the great artist, knows how difficult it is.