Theosophist

Well, what is it that he does that I don't do? Just say the word—teetotal, vegetarian, aeronaut, Theosophist, Superman—I'll have a try at it, Gladys, if you will only give me an idea what would please you.

Source: tatoeba (6622226)

It is easy to become a Theosophist. Any person of average intellectual capacities, and a leaning toward the metaphysical; of pure, unselfish life, who finds more joy in helping his neighbor than in receiving help himself; one who is ever ready to sacrifice his own pleasures for the sake of other people; and who loves Truth, Goodness, and Wisdom for their own sake, not for the benefit they may confer—is a Theosophist.

Source: tatoeba (12183450)

What can it be but the heaving of the Hypochondria that lifts up the Mind to such high comparisons from a supposition so false and foolish? But I have observed generally of Chymists^([sic]) and Theosophists, as of feveral other men more palpably mad, that their thoughts are carried much to Astrology, it being a fancifull study built upon very slight grounds, and indeed I do not queftion, but a relique of the ancient superstition and Idolatry amongst the rude Heathens, which either their own Melancholy, or something worse, instructed them in.

Source: wiktionary