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The world is so unpredictable. Things happen suddenly, unexpectedly. We want to feel we are in control of our own existence. In some ways we are, in some ways we're not.

A mathematician is a device for turning coffee into theorems.

發出履行性陳述并不是在做陳述，因此履行性陳述的發言既不真實也不虛假。

沉默是一種可以學習的語言。