Fifty years sooner or later can make little difference in the case of a book so revolutionary as this. It saw the light when a so-called revolutionary movement was preparing in men's minds, which agitation was, however, only a disturbance due to desires to participate in government, and to govern and to be governed, in a manner different to that which prevails. The "revolutionists" of 1848 were bewitched with an idea. They were not at all the masters of ideas. Most of those who since that time have prided themselves upon being revolutionists have been and are likewise but the bondmen of an idea, -that of the different lodgment of authority. The temptation is, of course, present to attempt an explanation of the central thought of this work; but such an effort appears to be unnecessary to one who has the volume in his hand. The author's care in illustrating his meaning shows that he realized how prone the possessed man is to misunderstand whatever is not moulded according to the fashions in thinking. The author's learning was considerable, his command of words and ideas may never be excelled by another, and he judged it needful to develop his argument in manifold ways. So those who enter into the spirit of it will scarcely hope to impress others with the same conclusion in a more summary manner. Or, if one might deem that possible after reading Stirner, still one cannot think that it could be done so surely. The author has made certain work of it, even though he has to wait for his public; but still, the reception of the book by its critics amply proves the truth of the saying that one can give another arguments, but not understanding. The system-makers and system-believers thus far cannot get it out of their heads that any discourse about the nature of an ego must turn upon the common characteristics of egos, to make a systematic scheme of what they share as a generality. The critics inquire what kind of man the author is talking about. They repeat the question: What does he believe in? They fail to grasp the purport of the recorded answer: "I believe in myself"; which is attributed to a common soldier long before the time of Stirner. They ask, What is the principle of the self-conscious egoist, -the Einzige? To this perplexity Stirner says: Change the question; put "who?" instead of "what?" and an answer can then be given by naming him!