The people who are crazy enough to think they can change the world are the ones who do.
那些疯狂到认为自己可以改变世界的人，才是真正改变世界的人。
"Sometimes the smallest things take up the most room in your heart."
Coal is China's main energy source and will remain the cornerstone of China's energy security for a long time to come.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
