无常是生死的自然法则。

The elegance of a mathematical proof often mirrors the efficiency of the algorithm it describes.

In mathematics, the art of proposing a question must be held of higher value than solving it.

The stranger is an element of the group itself, not unlike the poor and sundry 'inner enemies'—an element whose membership within the group involves both being outside it and confronting it.

最好的用户体验是无感体验。