我有足够的财富来保持诚实。

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。

The study of mathematics is like air or gravity—it is everywhere, and you can't see it, but you know it's there.

伤口是光进入你内心的地方。