FREEDOM, equality, brotherhood are three godheads of the soul; they cannot be really achieved through the external machinery of society or by man so long as he lives only in the individual and the communal ego. When the ego claims liberty, it arrives at competitive individualism. When it asserts equality, it arrives first at strife, then at an attempt to ignore the variations of Nature, and, as the sole way of doing that successfully, it constructs an artificial and machine-made society. A society that pursues liberty as its ideal is unable to achieve equality; a society that aims at equality will be obliged to sacrifice liberty. For the ego to speak of fraternity is for it to speak of something contrary to its nature. All that it knows is association for the pursuit of common egoistic ends and the utmost that it can arrive at is a closer organisation for the equal distribution of labour, production, consumption and enjoyment.
Yet is brotherhood the real key to the triple gospel of the idea of humanity. The union of liberty and equality can only be achieved by the power of human brotherhood and it cannot be founded on anything else. But brotherhood exists only in the soul and by the soul; it can exist by nothing else. For this brotherhood is not a matter either of physical kinship or of vital association or of intellectual agreement. When the soul claims freedom, it is the freedom of its self-development, the self-development of the divine in man in all his being. When it claims equality, what it is claiming is that freedom equally for all and the recognition of the same soul, the same godhead in all human beings. When it strives for brotherhood, it is founding that equal freedom of self-development on a common aim, a common life, a unity of mind and feeling founded upon the recognition of this inner spiritual unity. These three things are in fact the nature of the soul; for freedom, equality, unity are the eternal attributes of the Spirit. It is the practical recognition of this truth, it is the awakening of the soul in man and the attempt to get him to live from his soul and not from his ego which is the inner meaning of religion, and it is that to which the religion of humanity also must arrive before it can fulfil itself in the life of the race.
— The Ideal of Human Unity
CWSA 25: 569