Here's one of the things he writes in his book - The Winning Attitude.
He first shares about the law we all know:
Murphy's Law: Nothing is as easy as it looks; everything takes longer than you expect; and if anything can go wrong, it will and at the worst possible moment.
And then he does this big flip, and presents his own Law.
Nothing is as hard as it looks; everything is more rewarding than you expect; and if anything can go right it will and at the best possible moment.
Maxwell sure did a big flip here. But it does sounds possible too, right?
Now, it's really up to us to choose which Law we'd like to focus on :)