我不是悲观主义者,我是一个受过悲观主义训练的乐观主义者。
离散数学和连续数学之间的相互作用是一些最有趣的问题所在。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
"When you have a dream, you've got to grab it and never let go."