사자소학

(四字小學) Lit. 4 Character Small Learning

This is a book that was taught to little children since a very long time ago. It teaches some basic Hanja, along with some of life's best lessons, killing two birds with one stone. These phrases should give you a good sense of what an Eastern classical education was like, and perhaps shed some light on what it takes to successfully persuade someone who still holds on to Eastern ways of thinking.