Definition
To persuade someone to think and behave more rationally; to encourage someone to be reasonable.
劝人三思而後行
He's determined to quit his job, I need to talk some sense into him.
他決心要辭職，我需要勸他理智一點。
She was about to call off the wedding, luckily her friends talked some sense into her.
她正要取消婚禮，幸好她的朋友勸她理智一點。
He has been spending money recklessly, I wish someone could talk some sense into him.
他一直揮霍無度，我希望有人能勸他理智一點。