I pointed out (in the lecture of 19 February in Amsterdam) that these supersensible abilities are acquired only when the human being develops certain potential powers in his soul. In the wider civilised society of today, people do not want to know about these abilities. Nonetheless, we owe the catastrophic circumstances of our times exactly to this refusal to want to recognize anything about these skills.
Source: Rudolf Steiner – GA 297a – Erziehung zum Leben – Amsterdam, 28th February 1921 (p. 45)
Translated by Nesta Carsten-Krüger
The great Rudolf Steiner Quotes Site 