1. We don't repair roads, we destroy them!
2. Land of 10,000 potholes.
3. If you can build a better highway, we'd like to see it!
4. Highway numbers go to the highest bidder!
[My favorites from ahajokes.com.]
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(1) Young I may be, but even young people are entitled to their opinions.
(2)Attempting to silence me doesn't hurt me, but the silencer.
(3) I must remain true to myself.