But David said to Saul . . . When a lion or a bear came and carried off a sheep from the flock, I went after it, struck it and rescued the sheep from its mouth (1 Samuel 17:34-35). One of the core qualities of people who succeed in business is that they have a never-say-die attitude that always seek to snatch victory from the jaws of defeat. They succeed because they possess tenacity in the face of adversity. Keep your heart with all diligence, for out of it spring the issues of life (Proverbs 4:23).