The penis is an engineering marvel

[...] I often think that was how I got interested in engineering.

The penis -- if you think about it -- is the most enterprising engineering feat imaginable 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.

from Peter Greenaway's film '8 ½ Woman'
http://www.imdb.com/title/tt0154443/