The penis -- if you think about it -- is the most enterprising engineering feat imaginable -- a cantilevered structure, hydraulics, propulsion, pisto… - Peter Greenaway

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The penis -- if you think about it -- is the most enterprising engineering feat imaginable -- a cantilevered structure, hydraulics, propulsion, pistons, compression, inflation, heat sensitive -- practically every engineering characteristic -- towers, draw-bridges, rocket-ships -- no man-made engineering structure to match it.