技术应该解决实际问题，而不仅仅是创造新玩具。
The greatest gift is the gift of life itself.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. )
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
"I write to escape the truth, but I always end up finding it."