Raymond's Law of Software
Given a sufficiently large number of eyeballs, all bugs are shallow.
Raymond's Second Law
Any sufficiently advanced system of magic would be indistinguishable from a technology.
The first one is sometimes called "Raymond's Law" now, though I originally called it "Linus's Law" when I formulated it. Second one. Hmmm. Several people have since invented this one independently, but I came up with it more than twenty years ago. It's a reply to Arthur C. Clarke's Third Law, "Any sufficiently advanced technology is indistinguishable from magic."
Raymond's Law of Consequences
The road to hell has often been paved with good intentions. Therefore, evil is best recognized not by its motives but by its methods.