In what ways do Leper's theories about skiing set him apart from the other Devon boys in A Separate Peace?

Leper's theories about skiing set him apart from the other Devon boys because he approaches skiing with an unconventional and intellectual perspective, focusing on natural grace and harmony with the environment rather than speed and competition. His introspective and individualistic approach to skiing contrasts with the competitive and aggressive attitudes of his peers, making him unique in his interpretation of the sport.