Highest feelings do not come of themselves

There is no feeling and no enthusiasm to be compared with the sentiments of warmth, beauty and exaltation that are enkindled through the pure, crystal-clear thoughts that refer to the higher worlds. The highest feelings are, as a matter of fact, not those that come of themselves, but those that are achieved by energetic and persevering thinking.

Source: Rudolf Steiner – GA 9 – Theosophy – Chapter I: The Essential Nature of Man – 4: Body, Soul and Spirit

Translated by Henry B. Monges and revised for this edition by Gilbert Church, Ph.D.