The youthfulness I speak of is not a time of life but a state of mind, a temper of the will, a quality of the imagination, a predominance of courage over timidity, of the appetite for adventure over love of ease. . . . It does not accept the failures of today as a reason for the cruelties of tomorrow. It believes that one man can make a difference–and that men of good will, working together, can grasp the future and mold it to our will.