Understanding belief-desire psychology means understanding 1. that most people are driven to obey laws 2. that some beliefs that influence behavior are not accurate 3. the pain others feel when they make tough decisions 4. that wants and desires are a poor motivation for a behavior

The belief-desire psychology which also known as folk psychology means the idea is that simple people understand other simple people in terms of the hypothesis or expectation that another peoples’ action and performance is the outcome of their cognitive insides which is their psychology. The beliefs and desires communicate and cooperate each other to construct intentions and these intentions can lead to actions. This is a kind of folk-theory of human behavior.