I do not recommend being fanatical about such things as for instance, vaccination – not for medical reasons but because of Anthroposophy in general. We do not strive towards fanaticism around these issues, but we wish to change things through insight. I have always, when I befriended doctors, opposed this, as for instance with doctor Asch who absolutely would not inoculate. I have always contested this. Because if he doesn’t vaccinate, another will. It is completely absurd to be so fanatic in individual cases.
Source (German): Rudolf Steiner – GA 314 – Physiologisch-Therapeutisches auf Grundlage der Geisteswissenschaft – Dornach, April 22, 1924 (page 288)
Translated by Nesta Carsten-Krüger