Good and evil; the distinction between morally right and wrong actions—an ethical or value judgment concept.
その問題は善悪の判断が難しいケースだ。
That issue is a case where judging right and wrong is difficult.
彼は常に善悪を意識して行動している。
He always acts with a sense of right and wrong.
歴史を学ぶと善悪の基準が時代で変わることが分かる。
Studying history shows that standards of right and wrong change across eras.