To the former child migrants, who came to Australia from a home far away, led to believe this land would be a new beginning, when only to find it was not a beginning, but an end, an end of innocence - we apologise and we are sorry. To the mothers who lost the maternal right to love and care for their child - we apologise, and we are sorry.

We will certainly have to rethink the way in which we design and protect places where large numbers of Australians and indeed this will happen around the world.

Newspapers are busily experimenting with different models. Traditionally, and I suspect in hindsight very mistakenly, online news was free. And once given free access readers felt it was their entitlement.

Governments enjoying surpluses have a very strong temptation to splash money around, and while tax cuts are always appealing, cutting taxes at the top of a boom runs the real risk of creating a structural deficit when the boom subsides.

Climate change is a global problem. The planet is warming because of the growing level of greenhouse gas emissions from human activity. If this trend continues, truly catastrophic consequences are likely to ensue from rising sea levels, to reduced water availability, to more heat waves and fires.

Let us be honest with each other. The threat to marriage is not the gays. It is a lack of loving commitment - whether it is found in the form of neglect, indifference, cruelty or adultery, to name just a few manifestations of the loveless desert in which too many marriages come to grief.

Greece is an extreme case: a country where both the level of spending and the level of taxation were unsustainable!