我不是为了记录而比赛，我比赛是因为我热爱这项运动。

The concept of computational complexity is not just about how fast we can compute, but also about understanding the limits of what can be computed.

Stories you read when you're the right age never quite leave you. You may forget who wrote them or what the story was called. Sometimes you'll forget precisely what happened, but if a story touches you it will stay with you, haunting the places in your mind that you rarely ever visit.