The collective unconscious is the pool of primal human knowledge and experiences that has accumulated throughout evolution and is shared by every person deep within their unconscious. Archetypes are structures of the unconscious that can be described as emotionally charged images and thoughts that provide a potential pattern for imagination, thought, or behavior. Introversion is the habitual attitude of consciousness that prefers introspection and solitary activity. Extroversion is the habitual attitude of consciousness that prefers active interaction with others and the environment. People have an ideal state of superiority that they are trying to achieve, called final fictionalism.
People have unique personality styles for approaching their goals.
The four types that Adler recognized are ruling, getting, avoiding, and socially useful. Adler suggested that position in birth order makes a big difference. For example, first born children are often have conservative values and accept authority, whereas youngest children sometimes fail to become independent and have an exaggerated view of their own self-worth. Some people have an inferiority complex, which is a mindset of extreme inferiority. This results in those people becoming tentative, helpless, and lazy or engaging in overcompensation.