孔子说：“《关雎》这篇诗，快乐却不淫秽，悲哀却不伤痛。”
The beauty of a mathematical idea is that it can be shared and understood across cultures and time.
Light is the most important material in architecture.
Always demand a deadline. A deadline weeds out the extraneous and the ordinary. It prevents you from trying to make it perfect， so you have to make it different. Different is better.