How can we ensure that people are treated equally even though they differ in race, wealth, religion, etc?

People can be intelligent in many ways such as, certain subjects in school, “street” smart, or intelligent in common sense. For example, someone can be extremely well at doing math and horrible at science. However, this does not make them unintelligent. This just means that they are intelligent in a certain subject. Another example is, if someone has lived in a town there whole life they might be considered “street smart” about there own town. Such as, telling a new person in town don’t go to the suburbs after dark, it’s a bad part of town. Furthermore, you can be intelligent in common sense. For instance, some automatically know things that others have to think about. In conclusion, there are many different ways to be intelligent. Everyone is intelligent in there own way.