翻译：这句话体现了从易到难、从细到大的哲学思想，强调了细节和基础的重要性。

The beauty of mathematics lies in its ability to simplify complex problems.

"The only thing we can be sure of about the future is that it will be different."

剑鞘保护剑的锋利，自己却满足於它自己的迟钝。