—— 请按键盘 空白键 开始游戏 ——

为人高傲自夸,喜欢独断专行,这是行事办事的祸患。
In all affairs, it's a healthy thing now and then to hang a question mark on the things you have long taken for granted.
天下万事中,没有什么比道义更可贵的了。
If you can't explain your chemistry to a non-scientist, you don't understand it well enough.
可持续性不是一个流行词,而是矿业前进的唯一道路。