每一个优秀的数学家至少是半个哲学家，而每一个优秀的哲学家至少是半个数学家。

沉默是那些看得太多的人的语言。

Sometimes, the most heroic act is to continue living.

Make women rational creatures, and free citizens, and they will quickly become good wives; — that is, if men do not neglect the duties of husbands and fathers.

Privacy is a fundamental human right.

我们不仅生活在思想的世界中，而且也生活在物质的世界中。