"In various Upanishads we find that this Vedanta philosophy is not the outcome of meditation in the forests only, but that the very best parts of it were thought out and expressed by brains which were busiest in the everyday affairs of life. We cannot conceive any man busier than an absolute monarch, a man who is ruling over millions of people, and yet, some of these rulers were deep thinkers."

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