Multiple theories provide insight and contribute to different proportions to personality.
-7% shared environmental
-27% non-shared
-16-26% unknown
-40-50% genetic factors
level 1 (bottom) Basic Needs: shelter, food, etc.
level 2: Safety Needs: feeling safe and secure
level 3: Belonging and Love Needs: feeling accepted, with yourself and from others.
level 4: Esteem Needs: feeling good about yourself, having a good self esteem.
level 5: Self-Actualization: being the best you can be