如果知识可以创造问题，那么通过无知我们无法解决它们。
If knowledge can create problems, it is not through ignorance that we can solve them.
"Understanding the limits of computation is as important as pushing its boundaries."
The only limit to our realization of tomorrow is our doubts of today.
The essence of mathematics lies in its freedom.
In modern life nothing produces such an effect as a good platitude. It makes the whole worldkin.