让孩子笑的最好方法就是像对待大人一样对待他们。
哲学是迫使我们面对最想回避问题的学科。
在数学中,提出问题的艺术必须比解决问题更有价值。
The best way to predict the future is to create it.
The most important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.