My children, the secret of religion lies not in theories but in practice. To be good and to do good — that is the whole of religion. "Not he that crieth 'Lord', 'Lord', but he that doeth the will of the Father".
- Swami Vivekananda
30th April, 1891.The Complete Works of Swami Vivekananda/Volume 6/Epistles - Second Series/XXXVI Govinda Sahay