History textbooks simply present the facts without making many moral judgements, but in most other textbooks, in order not to "confuse" pupils, "bad people doing bad things" rarely appear, and when they do they are often "simplified" by a black-and-white representation of good and evil.
為了不要「混淆學生的價值觀」，除了只講述史實、較少做道德評價的歷史課本以外，「惡人惡行」在教科書中一向鮮少出現；即使出現，也往往被善惡分明的二分法「簡單化」。