तस्मै स होवाच । द्वे विद्ये वेदितव्ये इति ह स्म यद्ब्रह्मविदो वदन्ति परा चैवापरा च ॥ ४॥

To him, he said: Two kinds of knowledge must be known-that is what the knowers of Brahman tell us. They are the Higher Knowledge and the lower knowledge.