The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

If your dreams don't scare you, they are too small.

"Books are the keys to understanding the world and ourselves."

小习惯，大改变。

未来总是一个模糊的旋转，一种可能性，而不是一个地方。