Spektor was an indefatigable worker, and in the last forty years of his life, when he was steadily becoming more generally recognized as the foremost rabbinical authority in Russia, he maintained a large correspondence with rabbis, communities, philanthropists, and representative men in many parts of the world, who sought his advice and instruction on all conceivable subjects relating to Jews and Judaism. He early began to take an interest in general Jewish affairs, and his sound reasoning, his liberal views, and his love of peace combined to establish him as one of the great leaders of Russian Jewry.