What is the scientific method and what is its main principle?

Man is a rational being. Throughout our history, we have been tormented by a thirst for knowledge. We are trying to study new types of creatures and plants, discover new planets and galaxies. For this, an incredible number of devices and methods have been invented. One of them is the scientific method.
The scientific method is a set of techniques, operations that are closely related. They are further used to create a knowledge system.
The main principle of this research method is the following: take nothing for granted. Any fact, statement or denial must be verified and proven scientifically.