关于神，我不知道他们是否存在，也不知道他们是什么样子。
As to the gods, I do not know whether they exist or not, or what they are like.
Old minds are like old horses; you must exercise them if you wish to keep them in working order.
The soul of a place is captured not in its monuments, but in its stories.
追求数学知识是一段永无止境的旅程。