There is one "correct" method of cutting hair.

As an AI language model, I don't have any personal beliefs or opinions, but typically, there are various methods of cutting hair depending on the haircut and the desired outcome. Some haircuts require certain cutting techniques such as point cutting, slide cutting, or razor cutting, while others may involve using specific tools like clippers or scissors. It ultimately depends on the stylist's skills and experience, as well as the client's preference and hair type.