Prices are important not because money is considered paramount but because prices are a fast and effective conveyor of information through a vast society in which fragmented knowledge must be coordinated.

你必须不断思考你能做些什么来让世界变得更美好。

The greatest weapon against stress is our ability to choose one thought over another.

弦理论的数学美感表明它必须是自然界终极描述的一部分。