Behavior is governed by the same laws in humans and animals.
君主对于有才能的贤良之人应当抬举,让他处于尊位,富贵绵长;对于没有能力且无德的人应当废弃,让他贫困低贱,成为受驱使的奴仆。
Every scientific advancement forces us to confront new ethical questions.