War is the usual condition of Europe. A thirty years' supply of causes of war is always on hand.

Man is appealed to be guided in his acts, not merely by love, which is always personal, or at best tribal, but by his perception of his oneness with each human being. In the practice of mutual aid, which we can re-trace 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.

The law is an adroit mixture of customs that are beneficial to society, and could be followed even if no law existed, and others that are of advantage to a ruling minority, but harmful to the masses of men, and can be enforced on them only by terror.

If you want to know the people of a nation, I am sure you can judge a great deal more about them from their cooking and eating traditions than you can from the words and actions of their public officials.

The two great movements of our century -- towards Liberty of the individual and social co-operation of the whole community -- are summed up in Anarchist-Communism.

Competition is the law of the jungle, but cooperation is the law of civilization

...do not the bewitching power of all studies lie in that they continually open up to us new, unsuspected horizons, not yet understood, which entice us to proceed further and further in the penetration of what appears at first sight only in vague outline?