Learning the secret of flight from a bird was a good deal like learning the secret of magic from a magician—something the magician won't tell, and the bird can't tell.
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"We have been trying to make a machine that will fly, and we have succeeded."
"We have been able to keep the machine in the air for longer periods than ever before."
"Often, after an hour or so of heated argument, we would discover that we were as far from agreement as when we started, but that each had changed to the other's original position."
"We thought that we had solved a problem, but we had only created a new one."
"We have been trying to solve the problem of aerial navigation, and we believe we have succeeded."
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