自然知识的改进者绝对拒绝承认权威。对他来说，怀疑主义是最高的责任；盲目信仰是不可饶恕的罪过。

Everymorning I jump out of bed and step on a landmine. The landmine is me. After the explosion, I spent the rest of the day putting the pieces together.

预测未来的最好方法就是发明它。

The only person who is educated is the one who has learned how to learn and change.

数学的本质在于它的自由。