Before I call Senator Back, with the indulgence of the Senate: Senator Back, I recognise that you are hoping this will be your final contribution to the Senate—and you have had more farewells than Dame Nellie Melba, might I say!—but on behalf of the Senate, and I think I speak for everyone in the chamber, I want to thank you very much for your contribution to this place. You have carried yourself with great dignity, and I wish you and your family very well for the rest of your married life and career.