 He was a member of the Moetzes Gedolei HaTorah of Degel HaTorah, a member of Mifal HaShas, and "nasi" (president) of the Acheinu kiruv organization, and played a leading role in the fight for Torah-true education in yeshivas and Talmud Torahs in Israel.In addition to his own Torah works, he published the teachings of his rebbi, Rabbi Shlomo Heiman, in the two-volume "Chiddushei Shlomo".He was born in Valozhyn, Russian Empire (now Belarus) in 1913 to Moshe Dovid and Chaya Lefkowitz.