He has joined the Dukhobortsi; has sold his large estate, and is devoting all the money to their cause.
"The Crown of Life" by George Gissing
They are very closely akin to the Dukhobortsy, of which sect they are an offshoot.
"Russia" by Various
A Transcendentalist is a Dukhobortsi with a college education.
"Little Journeys to the Homes of the Great Philosophers, Volume 8" by Elbert Hubbard