Letter LII: Thursday, May 16, 1850
It is no easy matter to classify the different kinds of labour scientifically. To arrange the several varieties of work into "orders," and to group the manifold species of arts under a few comprehensive genera - so that the mind may grasp the whole at one effort - is a task attended with considerable difficulty. The first attempt to bring any number of diverse phenonema within the rules of logical division is not only laborious, but generally unsuccessful. It is impossible, however, to proceed with the systematic arrangement. Crude and illogical as the result may be, still it is essential to the proper conduct of the present investiation that I should seek to give some method to it. I shall therefore, before proceeding to the immediate subject of the present Letter, endeavour to arrange the several kinds of labour into their different classes.