The counter-skill to Legilimency is Occlumency (and its user, known as an Occlumens), by which one can compartmentalize one's emotions, or prevent a Legilimens from discovering thoughts or memories which contradict one's spoken words or actions. An advanced form of Occlumency is planting false temporary memories inside an Occlumens' own head while blocking all other true memories, so if a Legilimens, even a highly skilled one, were to attempt to read the mind, he or she would find false memories only and believe everything was right.