Histories make men wise; poets, witty; the mathematics, subtle; natural philosophy, deep; moral, grave; logic and rhetoric, able to contend. - Francis Bacon（读史使人明智，读诗使人聪慧；数学使人缜密，科学使人深刻；伦理学使人庄重，逻辑与修辞使人善辩。- 培根）；晚安，好梦！[印迹]
