Pareto has discussed his action theory on the basis of logical and illogical actions in which both objective and subjective meanings are attached respectively.Logical action essentially involves rational action both in the mind of the actor as well as those who observe them objectively. He maintains a logical co-relation between the means to the action and the end it serves. All sorts of logical actions are objectively observable and verifiable which is a reality in itself.
However in social reality most of the social actions are not logical. Although sociology deals with both the logical and non-logical actions it emphasizes the analysis of non-logical actions. It is the social reality in which actors give subjective meaning to the action which is driven by meanings, motives and sentiments.