The anthroposophical or spiritual scientific truths are so enormous, so powerful and meaningful, so all-pervading, that we find our own individual personality less and less interesting. One learns to understand just how uninteresting the single personality in reality is. Acquiring this knowledge, triggered by the fuel of the Spiritual scientific truths, is what truly liberates people from selfishness in the end.
Source (German): Rudolf Steiner – GA 56 – Die Erkenntnis der Seele und des Geistes – Berlin, December 12, 1907 (page 148-149)
Translated by Nesta Carsten-Krüger