In 1964, he returned to Australia and took up a post in the department of politics at
Monash University. He became active in the anti-
Vietnam War movement in Australia and counted among his friends leading
Australian Labor Party identities such as
Jim Cairns and
Bill Hayden. Teichmann later adopted more conservative views and he became a fierce critic of the Left in Australia. Writing in the
Australian Financial Review on 19 July 1999,
Christopher Pearson listed Teichmann as one of several contemporary Australian political commentators who had commenced on the Left but had become conservatives later on in their careers. Pearson asserted that "Teichmann's position evolved primarily in response to the Left". So much so that his "critique of parasitism in the institutional Left, old and new, made him a heretical presence at Monash". ==Columnist==