Selection from Arcana Coelestia ~ Emanuel Swedenborg
Knowledges are nothing else than the truths of the natural man, but which have not yet been made his own...Knowledges do not become truths in man until they are acknowledged by the understanding, which takes place when they are confirmed by him; and these truths do not become his own until he lives according to them; for nothing is made man's own except that which becomes of his life, for thus he himself is in the truths, because his life is in them.
(from Arcana Coelestia 5276)