We would not have had to go through the whole terrible campaign of falsehood that has travelled through the world over the last five years – as the ultimate consequence of something that has long been prepared – if people had learned to focus on the language of facts to a certain extent, and not on the language of emotions – wherein the nationalists are the most terrible stokers of such emotions. On the one hand, it is absolutely necessary today that we also learn to take into our own thinking what is not in ourselves. On the other hand, there is the aversion to this truthfulness, which seeks its guideline in the facts. Only those can ascend into a knowledge of the higher worlds, who strictly adhere to the external world of facts.
Source (German): Rudolf Steiner – GA 197 – Gegensätze in der Menschheitsentwickelung / West und Ost, Materialismus und Mystik, Wissen und Glauben – Stuttgart, March 5, 1920 (page 18-19)
Translated by Nesta Carsten-Krüger