Free education is abundant, all over the Internet. It's the desire to learn that's scarce.
如今网络上到处都是免费的教育资源，真正稀缺的是对学习的渴望。
The world is full of obvious things which nobody by any chance ever observes.
I shall die again and again to know that life is inexhaustible.
The study of computation is essential to understanding the limits of what can be computed.
Innovation is the key to the future of coal industry, we must embrace new technologies and ideas.
量子纠错对于构建可扩展的量子计算机至关重要。