A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.
一件制作精良的家具应该讲述一个关于品质、耐用性和永恒的故事。
Sustainability isn’t an option; it’s the only path forward.
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.
The most sustainable solutions often come from the simplest ideas.