"It is through the Self that you know anything. I see the chair; but to see the chair, I have first to perceive myself and then the chair. It is in and through the Self that the chair is perceived. It is in and through the Self that you are known to me, that the whole world is known to me...Take off the Self and the whole universe vanishes. In and through the Self all knowledge comes. Therefore it is the best known of all. It is yourself, that which you call I. You may wonder how this I of me can be the I of you. You may wonder how this limited I can be the unlimited Infinite, but it is so. The limited is a mere fiction. The Infinite has been covered up, as it were, and a little of It is manifesting as the I. Limitation can never come upon the unlimited; it is a fiction. The Self is known, therefore, to every one of us - man, woman, or child - and even to animals. Without knowing Him we can neither live nor move, nor have our being; without knowing this Lord of all, we cannot breathe or live a second. The God of the Vedanta is the most known of all and is not the outcome of imagination."

- Swami Vivekananda, "Practical Vedanta, Part I" (November 10, 1896, Morning class at 39 Victoria St, London), Complete Works: Vol 2