On his return to Australia in1969, he became a Research Fellow in the History of Ideas Unit at the Australian National University, Canberra, and then Senior Lecturer in History, at Macquarie University, Sydney.
On his return to Australia in 1969, he became a Research Fellow in the History of Ideas Unit at the Australian National University, Canberra. In 1974 and then Senior Lecturer in Ancient History at Macquarie University, Sydney.