Some people think that happiness is a feeling of satisfaction in their own and not feel a little mind to what it is. Happiness is to not take yourself to compare with others.
Some people think that happiness is a feeling satisfied with themselves and not feel hurt by what is. Happiness is not out to compare themselves with others.
Some people think that happiness is a feeling satisfied with what they have and don't feel upset with what is. Happiness is that no self compared with others.