任何一代人最伟大的发现是，一个人可以通过改变态度来改变他的生活。

骄矜自大，独断专行，招祸之源。

Matter is divisible ad infinitum, while form is indivisible.

我们从未放下任何事，我们只是继续下一件事。

There is no such thing as being “on time.” You are either late or you are early. Your choice.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.