[2] Returning to Chile in 1956 to edit the morning tabloid, El Espectador, he soon left this post to teach economic history at the University of Chile while continuing to write for the paper Las Noticias de Ultima Hora, under the pen-name Lautaro Fabian, and for Mensaje, a monthly journal of opinion published by the Jesuit Centro Bellarmino.
From 1962 to 1966, he was senior research fellow at the Royal Institute of International Affairs, Chatham House, where he organised the seminar that eventually became the Boston, Melbourne, Oxford, Vancouver Conversazioni on Culture and Society.
That same year, he organised the institute's Conference of the Pacific, the first major undertaking in recent history to open Latin America towards the oceanic ambit with principal participation form Japan, Australia, New Zealand, Singapore, China and Malaysia.
In 1972, he accepted an invitation from La Trobe University, Melbourne, to take a chair in sociology, which he held until 1989 also serving as dean of the School of Social Sciences.
His article on "A World Made in England" published in Quadrant in March 1983, was awarded that year's George Watson Prize for a political essay, and in 1986 he was invited to deliver the annual Latham Memorial Lecture at the University of Sydney.