An adventure is an activity or enterprise that potentially is fraught with risk, danger and excitement. Adventurer André Malraux asked, "If a man is not ready to risk his life, where is his dignity?" And Helen Keller warned, "Life is either a daring adventure or nothing." Although the term adventure often is used to describe activities with some potential for physical or psychological danger, adventurous experiences create psychological and physiological arousal. For this reason many people adventure becomes a major pursuit in and of itself.