采石场不仅仅是一个坑，它是我们留给后代的遗产。
History is not the past. It is the present. We carry our history with us.
You can’t change the past, but you can change the future.
未来是赋能地球上的每个人和组织实现更多。
The laws that forbid the carrying of arms are laws of such a nature. They disarm only those who are neither inclined nor determined to commit crimes.... Such laws make things worse for the assaulted and better for the assailants; they serve rather to encourage than to prevent homicides, for an unarmed man may be attacked with greater confidence than an armed man.