"Transcendentalism". Merriam Webster. 2016."a philosophy which says that thought and spiritual things are more real than ordinary human experience and material things"
patheos.com
PHILIP JENKINS. “New Thought”. patheos. 2022年7月23日閲覧。
stanford.edu
plato.stanford.edu
Goodman, Russell (2015). "Transcendentalism". Stanford Encyclopedia of Philosophy. "Transcendentalism is an American literary, political, and philosophical movement of the early nineteenth century, centered around Ralph Waldo Emerson."