This is one of the early biographies of Swami Vivekananda, written by famed writer of the 19th Century Roman Rolland. Translated from the French.

The author writes:
Vivekananda's words are great music, phrases in the style of Beethoven, stirring rhythms like the march of Handel choruses. I cannot touch these sayings of his, scattered as they are through the pages at thirty years distance, without receiving a thrill through my body like an electric shock. and what shocks, what transports must have been produced when in burning words they issued from the lips of the hero.