天将降大任于是人也，必先苦其心志，劳其筋骨，饿其体肤，空乏其身行，拂乱其所为，所以动心忍性，曾益其所不能。· When Heaven is about to grant a great task on a man，it makes him undergo mental trials and bodily hardships，exposes him to hunger，subjects him to extreme poverty and frustrates his efforts. By this，it stimulates his mind，hardens his character and makes up for his incompetence.