"faucet" but not "fawcett" as "one and the same" for "tap."
"Parthenon" and "pantheon" are not even close to "one and the same""
The Parthenon is a temple to Athena on the Athenian Acropolis
The Pantheon is a temple to all the gods of ancient Rome in Rome.
or, as a third meaning, according to some authorities,
"A pantheon (from Greek Πάνθειον1 - pantheion, literally "a temple of all gods", neut. of πανθεῖος pantheios, "of or common to all gods" (of a particular polytheistic religion or mythology).
Perhaps you've heard the observation that "the lawyer representing himself has a fool for a client."
Paraphrased, "the self-taught teacher runs the risk of knowing everything and having half of that be wrong."