I read something similar in a Peanuts cartoon once. Charlie Brown was talking to Linus and said: "You have two ears and one mouth, therefore listening is more important than talking. You have two eyes and one nose, therefore seeing is more important than smelling." At that point Snoopy came racing thru and knocked both of them over. Afterwards, Linus said: "And four legs?" to which Charlie Brown replied: "I guess running is more important than anything." :-)

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"Ex libris un peut de tout"