noun
sound argument; fair point; just reasoning
Refers to an argument or opinion that is logically correct, reasonable, and morally right. Often used when acknowledging a point even if it is hard to accept or implement.
彼の言うことは正論だが、感情的に受け入れられない。
What he says is a sound argument, but I can't accept it emotionally.
正論を述べるだけでは、人を動かせないこともある。
Sometimes just stating a fair point isn't enough to move people.