I would not give my first 15 years to my worst enemy.

Complacency is our worst enemy.

I liked 'Diff'rent Strokes' up until about the last three or four years. I was bored.

When you look at yourself you will find your worst enemy. Maybe not literal but it is very typical.

The worst enemy women have is in the pulpit.

We were our own worst enemy at times. We put ourselves in position to win but put them on the line too much.