It says by Yosef, vayhi kadibra eilov yom yom, velo shoma eleha. as the wife of Potifar spoke to him day hy day, Yosef diid not llsten to her. Explains the Chasan Sofer, it is like the yetzer hara who has nothing good to sell. so it talks much but the yetzer tov does not need to speak much as it has good merchandise. When a car salesman talls much, be careful.
