巢元方：诸病源候论·第1679则

楊素將輕騎五千襲王聃、紇單貴於蒲州，夜，至河際，收商賈船，得數百艘，船內多置草，踐之無聲，遂銜枚而濟；遲明，擊之；紇單貴敗走，聃懼，以城降。有詔征素還。初，素將行，計日破賊，皆如所量，於是以素為并州道行軍總管、河北道安撫大使，帥眾數萬以討諒。

素遣總管史萬歲帥眾二千，自婺州別道逾嶺越海，攻破溪洞，不可勝數。前後七百餘戰，轉斗千餘里，寂無聲問者十旬，遠近皆以萬歲為沒。萬歲置書竹筒中，浮之於水，汲者得之，言於素。素上其事，上嗟歎，賜萬歲家錢十萬。

GEICO was designed to be the low-cost operation in an enormous marketplace (auto insurance) populated largely by companies whose marketing structures restricted adaptation. Run as designed, it could offer unusual…