We must become quite differently convinced about the importance of our actions and the responsibilities which life lays on our shoulders. It is the most down to earth aspects of life which can be influenced in this way by occultism. He who knows what results in the invisible world as a consequence of thoughts and feelings, will surely grasp that it is just as important for him not to direct evil thoughts towards a person as it is to refrain from firing bullets at him. He knows that throwing the thought of hate at astral man is just as harmful for him, as throwing a roofing slate is for physical man.
Source: Rudolf Steiner – GA 93 – The Temple Legend: Lecture 19: THE RELATIONSHIP BETWEEN OCCULT KNOWLEDGE AND EVERYDAY LIFE– Berlin, 23rd October 1905 (evening)
Translated by John M. Wood