Concentrate . . . for the greatest achievements are reserved for the man of single aim, in whom no rival powers divide the empire of the soul.
Orison Swett MardenOne of the best strengtheners of character and developers of stamina ... is to assume the part you wish to play; to assert stoutly the possession of whatever you lack.
Orison Swett MardenObstacles are like wild animals. They are cowards but they will bluff you if they can. If they see you are afraid of them... they are liable to spring upon you; but if you look them squarely in the eye, they will slink out of sight.
Orison Swett Marden