Generalizations, like brooms, ought not to stand in a corner forever; they ought to sweep as a matter of course.

Generalizations, like brooms, ought not to stand in a corner forever; they ought to sweep as a matter of course.

概括就像扫帚，不应该永远站在角落里;他们当然应该打扫卫生。

-- John Lukacs 约翰·卢卡克斯