The Kenopaniṣat says - आत्मना विन्दतॆ वीर्यं विद्यया विन्दतॆऽमृतम् - AtmanA vindatE vIryaM; vidyayA vindatE amRutam meaning, from the Atmah comes Power and Strength, from Knowledge comes Immortality.
The Kena is a Mukhya Upanishad embedded in the end of the Samaveda. It deals with discussion of the Brahman which is both with and without…