Letter 94 (§67)

“When such men as these were disturbing the world, they were themselves disturbed—like cyclones that whirl together what they have seized, but which are first whirled themselves and can for this reason rush on with all the greater force, having no control over themselves; hence, after causing such destruction to others, they feel in their own body the ruinous force which has enabled them to cause havoc to many. You need never believe that a man can become happy through the unhappiness of another.”