Gymnosophist n. One of a sect of philosophers, said to have been found in India by Alexander the Great, who went almost naked, denied themselves the use of flesh, renounced bodily pleasures, and employed themselves in the contemplation of nature.
... eccentric and independent mind, wedded to a character of so much strength, singleness, and purity, pursued its own path of self-improvement for more than half a century, part gymnosophist, part backwoodsman; and thus did it come twice, though in a subaltern attitude, into ... — Familiar Studies of Men & Books • Robert Louis Stevenson