A man who knows that love is there for the paying of debts and brings no profit for the future, is a true Christian. To understand the nature of love — that is to be a Christian! Anthroposophy alone, Spiritual Science alone, with its teachings of Karma and reincarnation, can make us into great egoists unless the impulse of love, the Christ Impulse, is added; only so can we acquire the power to overcome the egoism that may be generated by Spiritual Science.
The balance is established by an understanding of the Christ Impulse. Spiritual Science is given to the world today because it is a necessity for humanity; but in it lies the great danger that — if it is cultivated without the Christ Impulse, without the Impulse of love — men will only increase their egoism, will actually breed egoism that lasts even beyond death. From this the conclusion must not be drawn that we should not cultivate Spiritual Science; rather we must learn to realise that understanding of the essential nature of love is an integral part of it.
Source: Rudolf steiner – GA 143 – Love and Its Meaning in the World – Zurich, 17th December, 1912
Translated by D. S. O. and E. F. and S. Derry