Originally, the burden of proof was on physicists to prove that time travel was possible. Now the burden of proof is on physicists to prove there must be a law forbidding time travel.

I'd already decided I wanted to design shoes after I saw a sign in the Museum of African and Oceanic Art forbidding high heels. Well, who could resist?

Adam was but human-this explains it all. He did not want the apple for the apple's sake, he wanted it only because it was forbidden. The mistake was in not forbidding the serpent; then he would have eaten the serpent.