“Judaism insists upon establishing a unity of faith and creed, of piety and Halacha, of devotion and deed. Faith is but a seed, while the deed is its growth or decay. Faith disembodied, faith that tries to grow in splendid isolation, is but a ghost, for which there is no place in our psycho-physical world.“
- Abraham J. Heschel, Man is not alone. A philosophy of Religion, New York 1976 (1951), S. 176.