I like to honor
him remembering a passage from his beautiful book “A Brief History of Time”.
“Even if there is only one possible unified
theory, it is just a set of rules and equations. What is it that breathes fire
into the equations and makes a universe for them to describe? The usual
approach of science of constructing a mathematical model cannot answer the
questions of why there should be a universe for the model to describe. Why does
the universe go to all the bother of existing? Is the unified theory so
compelling that it brings about its own existence? Or does it need a Creator,
and, if so, does He have any other effect on the universe? And who created Him?”.
When I think of him I hear in my mind his question: ”What is it that breathes fire into the equations and makes a universe for them to describe?”. I believe he now knows.

Here you can get the Discover magazine free download "The Life and Times of Stephen Hawking. Celebrating the life of the brilliant professor":
discovermagazine/the-life-and-times-of-stephen-hawking
Here you can read Roger Penrose on The Guardian:
Mind over matter: Stephen Hawking