The commentary of Shankara on the Gita is regarded as an outstanding specimen of Indian scholarship. Text and translation are given. The inclusion of 'word index' has added to the worth of the book.
Anything that is secret and mysterious in these systems of yoga should be at once rejected. The best guide in life is strength. In religion, as in all other matters, discard everything that weakens you, have nothing to do with it.
-Swami Vivekananda