This fascinating text concerns itself with the idea of a person's being able to beat fatigue and make the most of the 'second wind' that succeeds such barriers - barriers that prevent them from being as effective as possible in their various endeavours. The author argues that a "second wind" is a reality in the mental as in the physical realm, and that it can be found and used when needed. This text discusses the stages of fatigue apropos an undertaking or endeavour, and goes on to detail how battling past these 'fatigue-obstacles' can cause a surprising effect: the fatigue gets worse up to a certain point, when gradually or suddenly it passes away, and we are fresher than before. This book is sure too appeal to collectors of antiquarian literature and those interested in the often surprising capabilities of human beings. William James was an American psychologist and philosopher born in 1842. This book is proudly republished here with a new introductory biography of the author.