Sanskrit: तस्मै स होवाच ।  द्वे विद्ये वेदितव्ये इति ह स्मयद्ब्रह्मविदो वदन्ति परा चैवापरा च  
English: 4 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. 