问题的数学表述通常比其解决方案更重要,后者可能仅仅是数学或实验技巧的问题。
我们需要对互联网的安全保持警惕。
The complexity of things—the things within things—just seems to be endless. I mean nothing is easy, nothing is simple.
有时最普通的事物也能变得非凡。
"The truth is not what you remember, but what you can no longer forget."