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.

I think Australians are more interested in what I am doing with their money than what I am doing with my own.

What we're seeing at the moment is people being radicalised or adopting Islamist, murderous Islamist ideology very, very quickly so that you have people that are not on the counterterrorism radar screen who then often, as a result of mental illness, will then attach themselves to this murderous ideology and then act very quickly.

I am an ambitious person, but I am not ambitious in the sense that I want jobs only for the sake of them... I am here to do things I think are worthwhile. I am always careful that the political positions I take are consistent with good policy. I would not want to be prime minister of Australia at any price.

My commitment to the Republican movement was pure and simply patriotism, a love of Australia... a desire or passion that all of our national symbols should be unequivocally and unambiguously Australian.

The most effective check and balance on government has been an independent press which maintains its credibility by ensuring that its criticism is balanced and based on fact – based indeed on solid journalistic work.

What you've got to do is recognize that you don't control everything for a start, you've got to play the cards you're dealt, the hand of cards you're dealt, as best you can, and that's what I always seek to do.