My artist sister is having a protracted love affair with her Apple PowerBook. I love the way she takes family snapshots I send her by e-mail and transforms them into revelations. Here is what she did with a grandchild.
The caption -- "Whatever can be imagined is real" -- is certainly true for the reality of art, and not far in spirit from Michael Faraday's "Nothing is too wonderful to be true," which was carved over the door of the physics building at UCLA when I was a graduate student there.
A scientist might turn the phrase on its head and say "Whatever is real can be imagined." Or as Einstein said: "The most incomprehensible thing about the universe is that it is comprehensible."