The coldest and most self-contained philosophers, when they speak of it, find themselves sometimes impelled to adopt a poetic tone, and Aristotle will say of Justice that it is "a more wonderful thing than Hesperus or the Morning Star,"[1] and Emmanuel Kant will compose an apostrophe to Duty, and will write at the end of the Critique of Practical Reason: "Two things fill the soul with ever new and ever increasing veneration and admiration the more often and the longer reflection is occupied with them: the starry heaven above me, and the moral law within me." And even the great mass of rhetoric that has for its object virtue or the moral law is a homage rendered to this supreme force of life, reality of reality.
The impossibility of suppressing the economic or the moral form of the activity in our practical consciousness, the continual appeal that the one makes to the other, the revolving of our practical judgment about the two aspects, both of them necessary, of the useful and the honest, energy and goodness, pleasure and duty, explain why the Psychology and the Description of practical life have constituted the two kinds of types and classes, of economic and of moral men, of economic and of moral institutions. Such rough and approximate distinctions have however at bottom, in this as in other cases, an intimate and rigorous distinction, which every one will find evident in himself, if he look inward upon himself and fix his gaze persistently on the universal forms of the spirit that acts within him.
[1] Eth. Nicom.1. v. c. i, 1129 b.
II
CRITIQUE OF THE NEGATIONS OF THE ETHICAL FORM
Exclusion of materialistic and of intellectualistic criticisms.