Marcus and Yacov, two Hasidic Jews, went to Pincus the tailor for new suits. "Pincus," Yacov said, "the last time we came to you for new suits, we told you we wanted black suits. The suits you made were not black. They were sort of dark grey maybe, but not black, We need new suits, and this time we want black suits, from the darkest cloth there is." Pincus reached behind for a bolt of cloth and he said, "See this cloth? It is from this fabric that I make the habits for nuns. In all the world,"…