Sparks of Light
Weitzman, Gideon
The author writes: 'Rabbi Avraham Yitzhak HaCohen Kook (5635-5695/1865-1935) was one of the greatest Jewish leaders of recent history. He was steeped in Jewish knowledge of all kinds, a master of halacha, Talmud, and Jewish philosophy, and he also had a good knowledge of the general philosophy and science of his day.