The only lesson learned here is not to upset a guy who may have a lot of dirt on you.

If that is the only lesson you take from this book, then your time has not been wasted.

The only lesson to be drawn from them is to let them alone.

The only lesson handed out was to the Persians and the world.

"Because the only lesson I've ever learned is never to trust anything."

The only lessons taught here today were by the Panthers.

The only lesson here may be that there's nothing more valuable in life than obscure parents.

The only lesson that isn't affected by this grouping is Science.

I am possibly the only lesson you still needed to learn.

And the only lesson here for our listeners is, once again, be aware of your situation.