And the cost of inaction will be measured in Victorian lives.
From midday today, Stage One of our response to coronavirus means that non-essential activities will be shut down.
I know we're asking a lot of people. But we wouldn't be doing this if it wasn't absolutely necessary.
That'll give teachers the time they need to prepare for potential online learning in the weeks and months ahead.
I know it hasn't been easy. But your role in maintaining some sense of normality in our kids' lives has made all the difference.
All this action is meaningless if people choose to act selfishly and continue as normal.
But please – follow the rules.
Pubs and bars are closed for a reason.
It doesn't mean you can have all your mates round and get on the beers.
If you can stay home – you should stay home.
This is bigger than any one of us. But it will only work if all of us play our part.
Do it for the people you love and the people you've never met.
We can do this. We must.