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。
There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false. A thing is not necessarily either true or false; it can be both true and false.
"The best way to learn is to do it, to make mistakes, and to learn from them."
The heart of the educator must be a living flame, a source of warmth and light.
过去从未真正过去——它塑造了我们是谁。
"The only thing that is truly limitless is the human potential."