Friedrich Wilhelm Nietzsche (弗里德里希·威廉·尼采):

Reading history makes people wise, poetry witty, mathematics thoughtful, science profound, ethics solemn, logic and rhetoric makes people eloquent.

读史使人明智,读诗使人灵秀,数学使人周密,科学使人深刻,伦理学使人庄重,逻辑修辞之学使人善辩;凡有所学,皆成性格。