The only good is knowledge, and the only evil is ignorance.
Success is not about the money you make, it's about the difference you make in people's lives.
To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.
The best mathematics is simple, but not too simple.
The truth is a fragile thing, easily broken.
"我写作是为了摧毁影子，但最终总是创造了它。"