Answer:
Cynicism, Skepticism, Epicureanism, and Stoicism
Explanation:
Skepticism is the ability to doubt or question something
Cynicism is the inclination to believe that people are motivated purely by self-interest
Epicureanism is what is considered to be happiness, or the avoidance of pain and emotional disturbance
Stoicism is the development of self-control and fortitude as a means of overcoming destructive emotions
