Answer: According to the principles of selling, a great salesperson should listen more than they should talk.
Explanation: Whenever salesperson start talking more than listening, their focus shifts to the product and it's attributes instead of the customer.
Listening is one of the most essential traits a Salesman is expected to possess. Active listening helps a Salesperson to gather more information, comprehend better the prospect's wants and preferences.
Listening also helps to build a rapport with the prospective buyer which is essential for selling a product.
Hence, according to the principles of selling, a great salesperson should listen more than they should talk.