The term yogi in the East has for centuries been almost synonymous with a man who has withdrawn from social life. Yoga aims at the suppression of thinking as a goal in itself, which means that it aims at conscious trance (for this is the only thought-free state apart from deep sleep) and hence at an inactive life. A philosopher is free to live like a yogi if he is led to do so or, on the contrary, to use both a developed thinking activity and a practical existence. Activity will then be quite spontaneous, not with the spontaneity of impulse or passion, but with that derived from the absence of merely animal motivation. It will indeed be inspired living.
-- Notebooks Category 20: What Is Philosophy? > Chapter 5: The Philosopher > # 69