They are four temperaments of Personality (Galen c.123 – c.201 ce),
the roman philosopher and physician, claudius galen formulated of personality type,s based on ancient geek theory of humourism, which attempted to explain the working of human body as result earth, air, fire and water and also Melancholic, Phlegmatic, Choleric, and Sanguine.
the qualities of these elements in four corresponding humours (fluids) that affect the functioning of our bodies as result temperaments
All Things are combinations of four basic elements , earth, air, fire and water