But the farther the disciples proceed in this study, the farther and farther does not only the possibility, but even the very idea, of the solution of the problems of life withdraw from them, and the more and more do they become accustomed, not so much to investigate, as to believe in the assertions of other investigators (to believe in cells, in protoplasm, in the fourth condition of bodies, and so forth); the more and more does the form veil the contents from them; the more and more do they lose the consciousness of good and evil, and the capacity of understanding those expressions and definitions of good and evil which have been elaborated through the whole foregoing life of mankind; and the more and more do they appropriate to themselves the special scientific jargon of conventional expressions, which possesses no universally human significance; and the deeper and deeper do they plunge into the _debris_ of utterly unilluminated investigations; the more and more do they lose the power, not only of independent thought, but even of understanding the fresh human thought of others, which lies beyond the bounds of their Talmud. But the principal thing is, that they pass their best years in getting disused to life; they grow accustomed to consider their position as justifiable; and they convert themselves physically into utterly useless parasites, and mentally they dislocate their brains and become mental eunuchs. And in precisely the same manner, according to the measure of their folly, do they acquire self-conceit, which deprives them forever of all possibility of return to a simple life of toil, to a simple, clear, and universally human train of reasoning. Division of labor always has existed in human communities, and will probably always exist; but the question for us lies not in the fact that it has existed, and that it will exist, but in this,--how are we to govern ourselves so that this division shall be right? But if we take investigation as our rule of action, we by this very act repudiate all rule; then in that case we shall regard as right every division of labor which we shall descry among men, and which appears to us to be right--to which conclusion the prevailing scientific science also leads. Division of labor! Some are busied in mental or moral, others in muscular or physical, labor. With what confidence people enunciate this! They wish to think so, and it seems to them that, in point of fact, a perfectly regular exchange of services does take place.