The most profound ideas in mathematics often arise from the simplest observations.
永远不要停止学习——当你认为自己什么都懂的那一刻,就是你落后的开始。
The great thing about film is that it can take you anywhere in the world, and you can tell any story you want.
The state is not a work of art; it is a necessity.
The spirit of man is more important than mere physical strength, and the spiritual spark in man can be fanned into flame.