The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
Poetry is just the evidence of life. If your life is burning well, poetry is just the ash.
炽烈的恨意可以给空虚的生活带来意义和目的。
We want to build technology that everybody loves using, and that affects everyone. We want to create beautiful, intuitive services and technologies that are so incredibly useful that people use them twice a day. Like they use a toothbrush. There aren’t that many things people use twice a day.