Thar’s only two possibilities: Thar is life out there in the universe which is smarter than we are, or we’re the most intelligent life in the universe. Either way, it’s a mighty sobering thought.
Porky Pine, in Walt Kelly’s “Pogo”
Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us.
Calvin in Bill Watterson’s comic strip “Calvin and Hobbes”
windshepherd 