尘世存在的意义，并不像我们习惯于认为的那样，在于繁荣昌盛，而在于灵魂的滋长。

To be like God， and to follow after Him， is the business and happiness of rational creatures.

I believe in the power of music to bring people together.

计算复杂性的美在于它能够根据问题的固有难度对问题进行分类。

数学的美在于它既精确又富有创造性。