We learn to discriminate in practical affairs and among material things as to what they seem to be and what they really are. But the faculty can be applied on a much higher level of existence and a more abstract one, depending on the cultural or personal quality of a man. Its highest application is to separate the Truth about God, the Universe, and oneself from its appearances and their Realities.

-- Notebooks Category 7: The Intellect > Chapter 2: The Service of Intellect > # 36