Mayor Bloomberg, Council Speaker Christine Quinn and 10 religious leaders of various faiths journeyed to Governors Island this afternoon to show their support for the proposed mosque and community center near the World Trade Center site. With the Statue of Liberty in the background, the mayor gave what sure sounded like one of his most heartfelt speeches ever. He’s usually a technocrat, and often comes across that way, but today’s speech was a stirring declaration of principle. He even got choked up at one point.