Here on Linnaeus, the Swede who created taxonomy - which some say, tho others disagree, is the first duty of the student of the world - to take inventory, essentially. And since no one has ever done that before -- even now, given that, as we learn in our other thread, some 18-20,000 new species are discovered each year -- to name each new species, and classify it in line with good sense - always understanding that these categories are man-imposed and not absolutes but useful divisions based on something other than mere opinion.
http://www.ucmp.berkeley.edu/history/linnaeus.html
Notice the guy's father was a Lutheran pastor, and his parents were disappointed he wanted to make his own footsteps.