We would not be here but for the events of 28 April 1996 - events that will remain in our nation's memory always.
On that day, we saw unmitigated evil from one man.
And extraordinary courage from another.
I refer, of course, to Walter Mikac, whose wisdom and generosity of spirit has brought us together today.
In some very dark days, Walter came to see that too many children grow up knowing fear in their lives, and that he could do something about it.
In response, the Alannah and Madeline Foundation has given new hope to thousands of children, and will give hope to thousands more in the time ahead.
In the past 15 years, the need for our children to be safe has not changed.
But technology has.
The digital world has changed the landscape of childhood dramatically and forever.
Gone are the days when bullying stopped at the school gate.
The spread of electronic devices means bullies can now follow their victims everywhere and in a sense, technology has run ahead of the systems, rules and ethics required to manage the situation.
That is where eSmart has such value.
Because we want children to be as safe in the cyber world as they are, or should be, in the physical world.
I'm delighted that the Australian Government invested $3 million in support of the pilot program, which is now available to public schools in Queensland and Victoria.
I congratulate the Foundation on this result, and I am deeply honoured to be your National Patron.
I'm also deeply honoured that Her Royal Highness has agreed to be International Patron.
I spoke at Parliament House earlier this week of the life of service that Mary and Frederick have embraced.
Their support of the Foundation shows that spirit of dedication in abundance.
The support of the Crown Prince Couple means that more children will be able to enjoy their childhood free from harm.
It was something Alannah and Madeline never got to do.
But it's a gift we can at least give the children of today and tomorrow.
I know it is a cause dear to the heart of Crown Princess Mary.
She is a gracious leader and an inspirational friend.
And it is my very great privilege to welcome her to speak with us today.