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Letter & Spirit - Personal and Public Correspondence of the Lubavitcher Rebbe

More About Lubavitcher Rebbe from Chabad.orgLetters of the Rebbe about Lubavitcher Rebbe

Excerpt from a letter by the Rebbe to a graduating yeshiva class.
Friday, March 23, 1956 - Nissan 11, 5716
What motivated the Rebbe? What drove his unceasing labor and unprecedented achievements?