I'm not sure if you're just finding it or wanting to call it out. It was posted recently
here. And you can find more information and the accurate quote (though this is pretty correct)
here.
It is a great quote and it has been a bounteous month for me in terms of gathering good quotes in support of how atheism affects my outlook. There was this and then Fran Lebowitz's response at a City Arts & Lectures speech to what spirituality means to her (she is strongly atheist) is one I'll be using for a very long time.