As man does not live in a solitary state, habits and feeling develop within him which are useful for the preservation of society and the propagation … - Peter Kropotkin

In primitive Buddhism, in primitive Christianity, in the writings of some of the Mussulman teachers, in the early movements of the Reform, and especially in the ethical and philosophical movements of the last century and of our own times, the total abandonment of the idea of revenge, or of "due reward" — of good for good and evil for evil — is affirmed more and more vigorously. The higher conception of "no revenge for wrongs," and of freely giving more than one expects to receive from his neighbours, is proclaimed as being the real principle of morality — a principle superior to mere equivalence, equity, or justice, and more conducive to happiness. And man is appealed to to be guided in his acts, not merely by love, which is always personal, or at the best tribal, but by the perception of his oneness with each human being. In the practice of mutual aid, which we can retrace to the earliest beginnings of evolution, we thus find the positive and undoubted origin of our ethical conceptions; and we can affirm that in the ethical progress of man, mutual support — not mutual struggle — has had the leading part. In its wide extension, even at the present time, we also see the best guarantee of a still loftier evolution of our race.

The masses have never believed in sophisms taught by economists, uttered more to confirm exploiters in their rights than to convert exploited! Peasants and workers, crushed by misery and finding no support in the well-to-do classes, have let things go, save from time to time when they have affirmed their rights by insurrection. And if workers ever thought that the day would come when personal appropriation of capital would profit all by turning it into a stock of wealth to be shared by all, this illusion is vanishing like so many others. The worker perceives that he has been disinherited, and that disinherited he will remain, unless he has recourse to strikes or revolts to tear from his masters the smallest part of riches built up by his own efforts; that is to say, in order to get that little, he already must impose on himself the pangs of hunger and face imprisonment, if not exposure to Imperial, Royal, or Republican fusillades.
But a greater evil of the present system becomes more and more marked; namely, that in a system based on private appropriation, all that is necessary to life and to production — land, housing, food and tools — having once passed into the hands of a few, the production of necessities that would give well-being to all is continually hampered. The worker feels vaguely that our present technical power could give abundance to all, but he also perceives how the capitalistic system and the State hinder the conquest of this well-being in every way.
Far from producing more than is needed to assure material riches, we do not produce enough.

Mutual aid, even though it may represent one of the factors of evolution, covers nevertheless one aspect only of human relations; that by the side of this current, powerful though it may be, there is, and always has been, the other current — the self-assertion of the individual, not only in its efforts to attain personal or caste superiority, economical, political, and spiritual, but also in its much more important although less evident function of breaking through the bonds, always prone to become crystallized, which the tribe, the village community, the city, and the State impose upon the individual. In other words, there is the self-assertion of the individual taken as a progressive element. It is evident that no review of evolution can be complete, unless these two dominant currents are analyzed. However, the self-assertion of the individual or of groups of individuals, their struggles for superiority, and the conflicts which resulted therefrom, have already been analyzed, described, and glorified from time immemorial. In fact, up to the present time, this current alone has received attention from the epical poet, the annalist, the historian, and the sociologist. History, such as it has hitherto been written, is almost entirely a description of the ways and means by which theocracy, military power, autocracy, and, later on, the richer classes' rule have been promoted, established, and maintained.