Brahma Sutras systematizes the philosophy of the Upanishads in 555 aphorisms. In this book the original aphorisms are given in Devanagari followed by word-for-word English rendering, and the interpretation of the sutra according to Shankaracharya. The introduction contains a comparative study of the bhashyas of Shankara, Ramanuja, and Nimbarka.
Karma is the eternal assertion of human freedom. If we can bring ourselves down by our karma, surely it is in our power to raise ourselves by our own karma.
-Swami Vivekananda