Human thinking, the present intellect, lies in a stratum of being where it does not reach down to realities. One can therefore prove something quite strictly, and also prove its opposite. It is possible today to prove spiritualism on the one hand and materialism on the other. And people may fight against each other from equally good standpoints because present-day intellectualism is in an upper layer of reality and does not go down into the depths of being.
And it is the same with party opinions. A man who does not look deeper but simply lets himself be accepted into a certain party-circle — by reason of his education, heredity, circumstances of life and State — quite honestly believes — or so he thinks — in the possibility of proving the tenets of the party into which he has slipped, as he says. And then — then he fights against someone else who has slipped into another party! And the one is just as right as the other. This calls forth chaos and confusion over mankind that will gradually become greater and greater unless men see through it.
Source: Rudolf Steiner – GA 193 – The Ahrimanic Deception – Zurich, October 27, 1919
Translated by M. Cotterell / Revised by William Riggens