One must practice self-observation and try to bring home to oneself, without either mercy or consideration, the really grievous faults one knows oneself to possess, so that there comes before the soul a feeling, into which one must live deeply, of how little one corresponds to the great ideal of humanity.

Source: Rudolf Steiner – GA 138 – Initiation, Eternity and the Passing Moment: Lecture IV – Munich, August 28, 1912

Translated by Gilbert Church