Biological systematics actually illustrates the impossibility of reaching a single consistent explanation of the world by illustrating the impossibility of reaching a single consistent classification, because without a single consistent classification there’s of course no way of reaching a single consistent consistent explanation. The mission fails already at it’s onset by lacking the tools for success. It’s like trying to build a car without materials for it. Like a dream that is unable to materialize. An abstract utopia.
Science is thus just another religion if one believes in it, but a smart way to handle the world if one uses it as a tool. Its problem is to keep the distance from religions and at the same time compete with religions. It is practice against theory, or pragmatism against idealism. But, in all its humility (as practice in relation to theory), it is actually the only hope we have to avoid apocalypse.
Another contribution to understanding of conceptualization http://menvall.wordpress.com/