The most expensive cost in free-to-play games is players' trust—once overdrawn, it can never be bought back.
免费游戏最贵的成本是玩家的信任，一旦透支就再也买不回来。
"In computational learning theory, the challenge is not just to learn, but to understand how learning is possible."
Writing is rewriting—the magic happens in the edits.
生命太短暂，不要把时间浪费在无关紧要的事情上。