市场设计是一个持续的实验——今天有效的明天可能就需要调整。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
我不是理论家。我不是知识分子。我写剧本。
Life is a great big canvas,and you should throw all the paint on it you can.
The future of coal lies in clean and efficient utilization.