Noel Hush, who died on March 20 at the age of ninety-four, was an Australian theoretical and computational chemist who became one of the great scientists of his times. He was also dedicated to the preservation of liberal and conservative values in Australian society, a political position he pursued through his membership of the board of directors of Quadrant since 1998. At a memorial service in the Great Hall at the University of Sydney on May 27, his friends and colleagues recalled his numerous achievements. We publish here tributes from Max Bennett and Jeff Reimers. Max Bennett Forty-eight years ago,…