One of the features of the scientific world is classification of different species into their various groupings and subgroupings. The Torah itself introduces the concept of classification of mitzvoth, identifying the categories of edot, chukim, and mishpatim. It is the question of the classification of these three categories of mitzvoth that our Sages identify as that of the chacham.
The line between greatness and failure is so small as to be unrecognizable, often revealing itself only after many years. This is true in the world of business, science, technology and the like, where the results of today's efforts can remain unknown for many years. It is equally true in the world of morality, where it is often most difficult to determine if a particular action is a great mitzvah or its opposite.