"The best children's books are those that respect the intelligence of the child."
最好的儿童书籍是那些尊重孩子智力的书籍。
我不是名人。我是活动家。
Some people are busy dying, others are busy living.
不要担心你在数学上遇到的困难；我敢保证我遇到的困难比你还大得多。
The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.
The only way to get through pain is to go through it.
晶体管是一种等待被发明的设备。