Training your horse in a " Classical " method simply means that you commit yourself to taking time, being kind, and enabling the horse to respond to you because he "chooses" to do so.
Regardless of the horse's breed or the rider's choice of style, cruelty and forcefulness should never be part of any training regimen. In balance, the horse will always need a leader and definition of what is expected of him. All horses are born to find their place in the herd.
It is the human's duty to be the leader , but in a way that is fair, logical, and consistent.