What would Sir Robert Menzies have made of attempts to conscript his name to the cause of redefining marriage in law?

Was he a conservative or a so-called progressive on social issues?

Would he have simply gone with the times?

It is difficult to know for sure.

But what is known about Australia’s longest serving Prime Minister is that he was one who could see threats over the horizon and was not afraid to issue long-range warnings – even on social policy.