我们都是我们选择的总和,有时也是他人选择的总和。
在采矿业,安全不仅仅是政策 - 它是个人问题。
To understand the universe, you must understand the language in which it is written, and that language is mathematics.
我是一个非常积极的思想者,我认为这是我在困难时刻最能帮助我的东西。