All the most reasonable teachings of human wisdom concerning justice are summed up in that famous adage: Do unto others that which you would that oth… - Pierre-Joseph Proudhon

Property and society are completely irreconcilable with one another. It is as impossible to associate two proprietors as to join two magnets by their opposite poles. Either society must perish, or it must destroy property.

The nation, so long a victim of monarchical selfishness, thought to deliver itself for ever by declaring that it alone was sovereign. But what was monarchy? The sovereignty of one man. What is democracy? The sovereignty of the nation, or, rather, of the national majority. But it is, in both cases, the sovereignty of man instead of the sovereignty of the law, the sovereignty of the will instead of the sovereignty of the reason; in one word, the passions instead of justice. Undoubtedly, when a nation passes from the monarchical to the democratic state, there is progress, because in multiplying the sovereigns we increase the opportunities of the reason to substitute itself for the will; but in reality there is no revolution in the government, since the principle remains the same. Now, we have the proof to-day that, with the most perfect democracy, we cannot be free.

When our ideas on any subject, material, intellectual, or social, undergo a thorough change in consequence of new observations, I call that movement of the mind revolution. If the ideas are simply extended or modified, there is only progress. Thus the system of Ptolemy was a step in astronomical progress, that of Copernicus was a revolution.