A simple translation of the Upanishad containing the original text in Devanagari, transliteration of each shloka, and word-for-word English rendering followed by a running translation and notes based on Shankaracharya's commentary.
Are you unselfish? That is the question. If you are, you will be perfect without reading a single religious book, without going into a single church or temple.
-Swami Vivekananda