领导者必须有勇气为长期利益做出艰难的决定，即使这些决定在短期内不受欢迎。
"The only limit to our realization of tomorrow is our doubts of today."
You should write, first of all, to please yourself. You shouldn't care a damn about anybody else at all.
计算复杂性的研究不仅仅是关于解决问题，还在于理解可计算性的极限。