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.
Malcolm TurnbullIn economics, one of the most important concepts is 'opportunity cost' - the idea that once you spend your money on something, you can't spend it again on something else.
Malcolm TurnbullThis is a very tough business, politics. It's easy to get resentful or full of bitterness ... (but) I think hatred hurts the hater more than the hated. So I'm looking back on my time positively.
Malcolm TurnbullNobody looks at opinion polls with more attention than politicians, but of course you've got to remember that a single poll is a snapshot in time.
Malcolm Turnbull