If car manufacturers made cars according to spec the same way software vendors make software according to spec, all five wheels would be of widely differing sizes, it would take one person to steer and another to work the pedals and yet another to operate the user-friendly menu-driven dashboard, and if it would not drive straight ahead without a lot of effort, civil engineers would respond by building spiraling roads around each city.

Re: What obstacles do Common Lisp programmers face? (Usenet article).

https://groups.google.com/forum/#!msg/comp.lang.li...[groups.google.com]