The great ideological battles between liberalism and communism, or between democracy and authoritarianism, have been replaced by a general consensus on the desirability of liberal democracy.

在统计工作中，正确的数学工具必须用于正确的问题，而且工具必须锋利。

People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.

传记作者的任务是复活过去，而非评判它。

抽象是管理大型软件系统复杂性的关键。