This is a powerful lecture delivered by Swami Vivekananda in San Francisco in 1900.It is one of the best books delineating, in brief, the fundamentals of Vedanta in a lucid, authoritative and candid tone.
Bless people when the revile you. Think how much good they are doing by helping to stamp out the false ego. Hold fast to the Atman, think only pure thoughts, and you will accomplish more than a regiment of mere preachers.
-Swami Vivekananda