I can't get to my collection right now...all boxed up.
But I will submit that ANYTHING said by Calvin to Hobbes is a classic.
From either Lucy or Linus..."I love mankind; its people I can't stand."
From the Wizard of Id...(from a soldier in a long line) "Are we advancing or retreating?" His buddy responds, "Where is Sir Rodney?"
"Out in front." "Then we are retreating."
I would also suggest that in addition to "Pogo", "Shoe" is one of the best drawn and politically adroit comics ever produced.