In the realm of computational complexity, every problem is a universe waiting to be explored.
在计算复杂性的领域里,每个问题都是一个等待被探索的宇宙。
旅行对我来说,是恢复青春活力的源泉。
It is in the thirties that we want friends. In the forties we know they won't save us any more than love did.