坚持做自己喜欢的事情，即使遇到困难也不要轻易放弃。
Mathematics is the language in which the universe is written.
The future of liberal democracy depends on its ability to reform itself and address the legitimate grievances of those who feel left behind by globalization and technological change.
"Let me tell you the secret that has led me to my goal. My strength lies solely in my tenacity."