Fairness is treating people justly, not letting your personal feelings bias your decisions about others." Fairness is an essential social belief to many people. We give you some interesting stories when talking about this topic.
What does it mean for the justice? The fairness means you should not know who are talking and use your rule in your heart to make decision. This is why the justice symbol is a lady holding a balance with eye covered.
As human and event the chimpanzees demand fairness. it's the fundamental belief it should be well honored social rules. One experiment shows if you give cucumber to both chimpanzees, they will take it calmly. However, when you give one cucumber but other other grape. The one given cucumber will show rebellion and angry of the unfair treatments.
The definition of fairness means "lack of favoritism toward one side or another.