The ultimate test of any economic theory is whether it improves real-world decisions.
The only way to do great work is to love what you do. If you haven't found it yet, keep looking. Don't settle.
To be a good mathematician, you need to have both intuition and rigor.
Success is not an accident. It is a choice， a discipline， a learning process， a sacrifice， and most of all， a love for what you are doing.
家不仅仅是一个地方，它是编织在我们记忆中的一种感觉。
The most sustainable building is the one that already exists.