真正的挑战不是建造一个便宜的房子,而是建造一个居住成本低的房子。
The real challenge is not to build a cheap house, but to build a house that is cheap to live in.
数学不是关于数字、方程、计算或算法的:它是关于理解的。
Sometimes, the best way to help someone is just to be near them.
The art of writing is the art of discovering what you believe.
On progress: "If you're competitor-focused, you have to wait until there is a competitor doing something. Being customer-focused allows you to be more pioneering."