A Penny's Worth

If thoughts are worth a penny
(Which was once the going rate),
Then those folks who haven’t any
Should just bide their time and wait.

If we factor in inflation,
What we think’s worth so much more
Than the age-old application
Of that passé metaphor.

Still, no matter what they’re paying
To express what’s in our head,
There will still be some displaying
Merely emptiness instead.