画鬼魅易,画狗马难。
【释义】画妖魔鬼怪容易,画狗和马却很难。
The highest form of ignorance is when you reject something you don't know anything about.
理论计算机科学中的挑战不仅仅是解决问题,而是理解为什么它们难以解决。
The true meaning of life is to plant trees under whose shade you do not expect to sit.