Leave a gate behind you the way you first found it.
未来不再是过去的样子。
In the pursuit of mathematical truth, we often find more questions than answers.
你会说他做这些是为了讨好看守。或者也许是为了同我们搞好关系。而我则认为他只是为了再度体验一下正常人的感觉,哪怕只是为了短短的片刻。