by Rabbi Yair Hoffman for 5tjt.com Dedicated in memory of R’ Refoel Zev ben Chaim Tzvi on his 15th yahrtzeit Rabbi Yisroel Salanter zt”l developed a highly sophisticated method of Mussar Theory and proposed this system to his students in a series of 31 letters printed in a work entitled Ohr Yisroel.  What follows is a […]