In the wild, every decision can mean the difference between life and death.
石油的真正成本不仅仅是每桶的价格，还包括环境和社会影响。
What we learn from history is that people don't learn from history.
对于忠告，你所能做的，就是把它奉送给别人，忠告从来就不是给自己准备的。