数学中的每个问题都有解答，关键在于找到正确的路径。

Science is a marathon, not a sprint.

Ignoring isn’t the same as ignorance, you have to work at it.

If you're not stubborn， you'll give up on experiments too soon. And if you're not flexible， you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

要理解现在，我们必须理解过去。