Four temperaments
A melancholic or melancholy person is a thinker and perfectionist. They tend to prefer to spend time alone instead of being in social situations. They go by a schedule and are truthful (say what they mean). They can become depressed because of their perfectionist traits. They might suffer in silence and not complain. They are independent and able to do things for themselves.  Melancholics can be creative in artistic areas such as poetry and music.