你能用英语回答一下这句话吗?

具体如下：

Now many people have raised all kinds of questions for future generations. I still remember a great man asking such a question: what is the longest and the shortest.

现在有好多人都提出了各种各样的问题留给后人。我还记得有一位伟人问过这么一个问题：什么东西是最长的，又是最短的。

This question has not been answered for hundreds of years until one day, another great man answered "it's time". The question was answered and everyone seemed to be enlightened.

这个问题数百年都没有得到答案，直到有一天，被另一位伟人回答了“是时间”。问题被解答了，所有人仿佛都豁然开朗。

If I ask a question and I answer it, that's the real excellence. It can not only make me smarter and wiser, but also know a new mystery in the world.

如果自己提一个问题，自己又将他解答了出来，那才是真正的精益求精，不仅能让自己变的更加聪明、机智，还能知道这世上的新一个奥秘。

Ask yourself a question and answer it yourself. For others, it must be able to answer.

自己提出来一个问题，自己解答出这个问题。对于别人而说，还一定能够解答的出来的。