Keith Windschuttle: To Those Who Have Made Quadrant Possible Prime Minister Tony Abbott, former Prime Minister John Howard, chair of the Quadrant board, Elizabeth Prior Jonson, ladies, gentlemen and friends: It gives me enormous pleasure to welcome you all to this function to celebrate the 500th edition of Quadrant. And I’m sure I speak for everyone here tonight when I say it is a particular pleasure just to be able to say the words “Prime Minister Tony Abbott”. What a great campaign and what a great victory! We chose this venue tonight partly because it’s such a beautiful site but…