states - Anything that can go wrong, will go wrong.

Murphy did not come up with this. It was attributed to him.

Either way, this is a pessimist's way of looking at life.

If fear dominates you, you think about the things that will go wrong and what you keep thinking about, often comes to pass.

If faith/belief dominates you, you think about the things you want to achieve and they come to pass.

What have you been thinking about?