But the world-movers, men who bring, as It were, a mass of magnetism into the world whose spirit works in hundreds and in thousands, whose life ignites others with a spiritual fire — such men, we always find, have that spiritual background. Their motive power came from religion. Religion is the greatest motive power for rea...lising that infinite energy which is the birthright and nature of every man. In building up character in making for everything that is good and great, in bringing peace to others and peace to one's own self, religion is the highest motive power and, therefore, ought to be studied from that standpoint.
- Swami Vivekananda
( Delivered in London )The Complete Works of Swami Vivekananda/Volume 2/Jnana-Yoga/The Necessity of Religion