How has all the knowledge in the world been gained but by the concentration of the powers of the mind? The world is ready to give up its secrets if we only know how to knock, how to give it the necessary blow. The strength and force of the blow come through concentration. There is no limit to the power of the human mind. The more concentrated it is, the more power is brought to bear on one point; that is the secret.
Swami VivekanandaIf faith in ourselves had been more extensively taught and practiced, I am sure a very large portion of the evils and miseries that we have would have vanished.
Swami VivekanandaSome men, who begin by saying that the world is a hell, often end by saying that it is a heaven when they succeed in the practice of self-control.
Swami Vivekananda