His early sympathies with communism were shattered by events such as the Soviet purges of the 1930s and the Molotov–Ribbentrop pact and he remained a vigorous lifelong anti-communist.
[1] Krygier's anti-totalitarian, liberal, democratic perspective led him to sympathies with the international Congress for Cultural Freedom, founded in West Berlin in 1950.
[1] The Association's principal achievement, as well as his, was the creation in 1956 of the literary-political magazine Quadrant, under the editorship of James McAuley.
In addition, he organised lecture tours of prominent overseas political and cultural figures and conferences on the problems on establishing democracy in developing states.
[1] They had two children, a daughter and a son, Martin Krygier (born 1949) who is the Gordon Samuels Professor of Law and Social Theory at the University of New South Wales.