The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
晏子春秋
Mathematics is not a spectator sport. You have to get involved.
函数的概念在数学中是基础的,而λ演算试图使这一概念精确化。
Great furniture should tell a story about the people who use it and the spaces they inhabit.