数学之美在于它能够揭示现实的隐藏结构。

The best books are those that make you feel less alone.

量子技术的未来掌握在那些敢于梦想并为之不懈努力的人手中。

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.