Why be a champion jumper or a special team member in any sport, if you cannot climb or swim? - Georges Hébert

Methodical or rational education enhances accuracy, avoids guesswork, rejects everything that is unnecessary and monitors results.

Any physical education method should include two components: a learning part aimed at educating the body, improving endurance, strength and flexibility, teaching the basic techniques for elementary and practical exercises like walking, running, jumping, lifting, climbing, throwing, swimming and defending; and an application part aimed at developing to the highest degree the practical abilities, putting them to use, and providing the means to cope with many real life situations.

Resistance to cold is as part of physical education as the gymnastic exercises. It is why the bare torso must be the rule all the time when the atmospheric conditions are not too unfavorable.