根据给定的输入翻译一段英文短文：
道德是什么？每个人都有不同的定义。简单来说，道德是一种自愿的行为规则，这些规则通常符合人们认为是正确和好的行为。
What is morality? Everyone has a different definition. Simply put, morality is a set of voluntary behavioral rules that typically align with what people consider to be right and good actions.