Missionary zeal does not grow out of intellectual beliefs, nor out of theological arguments, but out of love. If I do not love a person I am not moved to help him by proofs that he is in need; if I do love him, I wait for no proof of a special need to urge me to help him.
“In Judaism, there are 613 biblical commandments, and the Talmud says that the chief commandment of all is study.”