艺术家必须是可见与不可见之间的桥梁。
The artist must be a bridge between the visible and the invisible.
不要看时钟，做它该做的事。继续前进。
学习数学的最好方法就是做数学。
The beauty of physics lies in its ability to explain the complexities of the universe with simple principles.
It is justice, not charity, that is wanting in the world.
I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.
儿童有着他自己的人格，他自身具有创造精神的美和尊严。这种美和尊严是永远不能磨灭的，所以他的纯洁而非常敏感的心灵需要我们最审慎的爱护。