真相很少纯粹，也绝不简单。

没有永恒的事实，就像没有绝对的真理一样。

Deep learning is a powerful tool for solving complex problems.

I decided, very early on, just to accept life unconditionally; I never expected it to do anything special for me, yet I seemed to accomplish far more than I had ever hoped. Most of the time it just happened to me without my ever seeking it.

最好的数学是永恒的。