Thus by an unprejudiced observation of the animal kingdom, we reach the conclusion that wherever society exists at all, this principle may be found: … - Pyotr Kropotkin

On the subject of social wealth, an attempt has been made to establish a distinction between two kinds, and has even managed to divide the socialist party over this distinction. The school which today is called collectivist, substituting for the collectivism of the old International (which was only anti-authoritarian communism) a sort of doctrinaire collectivism, has tried to establish a distinction between capital which is used for production and wealth which is used to supply the necessities of life. Machinery, factories, raw materials, means of communication, and land on one side, and homes, manufactured goods, clothing, foodstuffs on the other, the former becoming collective property, the latter intended, according to the learned representatives of this school, to remain individual property.
There has been an attempt to set up this distinction, but popular good sense has got the better of it; it has found it illusory and impossible to establish. It is vicious in theory and fails in practical life. The workers understand that the house which shelters us, the coal and gas we burn, the fuel consumed by the human machine to sustain life, the clothing necessary for existence, the book we read for instruction, even the enjoyments we get, are all so many component parts of our existence, are all as necessary to successful production and the progressive development of humanity as machines, manufactories, raw materials, and other means of working. The workers are arriving at the conclusion that to maintain private property for this sort of wealth would be to maintain inequality, oppression, exploitation, to paralyze beforehand the results of the partial expropriation. Leaping over the fence set up in their path by theoretical collectivism, they are marching straight for the simplest and most practical form of anti-authoritarian communism.

"To emancipate woman, is not only to open the gates of the university, the law courts, or the parliaments to her, for the "emancipated" woman will always throw her domestic toil on to another woman. To emancipate woman is to free her from the brutalizing toil of kitchen and washhouse; it is to organize your household in such a way as to enable her to rear her children, if she be so minded, while still retaining sufficient leisure to take her share of social life. It will come. As we have said, things are already improving. Only let us fully understand that a revolution, intoxicated with the beautiful words, Liberty, Equality, Solidarity, would not be a revolution if it maintained slavery at home. Half humanity subjected to the slavery of the hearth would still have to rebel against the other half."

Equality in mutual relations with the solidarity arising from it, this is the most powerful weapon of the animal world in the struggle for existence. And equality is equity.