"you need to be convinced of a product if you want to convince others of its merits" in German You need to be convinced of a product if you want to convince others of its merits. Du musst hinter einem Produkt stehen, wenn du andere davon überzeugen willst. Detailed translations for "you need to be convinced of a product if you want to convince others of its merits" You need to be convinced of a product if you want to convince others of its merits. You need to be convinced of a product if you want to convince others of its merits. Du musst hinter einem Produkt stehen, wenn du andere davon überzeugen willst.