Never a failure, always a lesson.
永远不是失败,永远是一课。
在计算复杂性中,我们不仅仅是在处理我们能计算的极限,也是在处理我们能证明的极限。
Life is not like cooking, where you can prepare all the ingredients before you start cooking.
Progress is impossible without change, and those who cannot change their minds cannot change anything.