Training
A rock-climber can't afford such peril as that to which the unskilled skier—speeding down, happily out of control without knowing it—subjects himself if he tries the Nosedive. On rock, a subjective danger is more serious, for if there should be snow for a climber to fall on when he is out of control, it is often too far below. His safety, then, lies in controlled climbing, an ability derived in turn from progressive study of what his body is able to do. Once he has learned his limitations, his further safety lies in knowing how to correct the mistake of going beyond the limit of his ability.