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I’m a very positive thinker, and I think that is what helps me the most in difficult moments.

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

對話應當面面俱到，無所不談，但又不可深談。

The only way to get rid of a temptation is to yield to it.

The method of psychology must be strictly controlled.

生活中最重要的問題，大多數情況下，實際上只是概率問題。

The ocean feeds millions, and it's our duty to ensure it can continue to do so for generations.