数学的美在于它是永恒的,它不会改变。
The things we don’t say shape us as much as the things we do.
If I have seen further, it is by standing on the shoulders of giants.
Libraries were full of ideas—perhaps the most dangerous and powerful of all weapons.
我们都是时间的移民。
可持续性不是一种选择;它是我们对后代的责任。