“Enthusiasm is as brittle as crystal, but common sense is br> Durable as brass.” This is a compact and compelling edition of yoritimo-tashi’s two great works, influence: how to exert it and common sense: how to exercise it. From lessons on awakening the dormant energies within us by increasing and expanding the psychic forces to exerting powerful influence by exchanging confidence, the power of influence includes guidance on exerting influence by persuasion and suggestion, developing magnetic influence of the human eye, acquiring and developing common sense and practical sense, how to go about applying them in our daily lives, and their profitable utilization in the business world. Though centuries old, the doctrines of the twelfth-century Japanese shogun still remain relevant in modern times.