R. Joseph Soloveitchik's profound engagement with The Guide of the Perplexed is amply attested by Lawrence Kaplan's recent publication of Soloveitchik's lectures on this classic work of Jewish philosophy, delivered in 1950-1951 during a year-long course on the Guide. Soloveitchik's reading is situated outside the boundaries of the Guide's usual interpretations, and his lectures offer an entirely new view of the essence of the Guide. For Maimonides, hesed, or loving-kindness, is the foundation of the world. Soloveitchik's lectures offer an elaborate working out of this fundamental insight.