Tow different views of ancient justice instituting and modern justice instituting will be seen from legislators visual angle,—ancient justice instituting proceed from philosophers lawmaking for city state out of sacred responsibility,whereas modern justice instituting does from every mother s son for own humble rights.

Tow different views of ancient justice instituting and modern justice instituting will be seen from legislators visual angle,—ancient justice instituting proceed from philosophers lawmaking for city state out of sacred responsibility,whereas modern justice instituting does from every mother s son for own humble rights.

However, ancient justice and modern justice have given such different interpretations to this reference that the former confers divinity on nature and the latter accords brutish nature to it.

Because of the different history conditions ,the theory studying themes are different ,in brief, the history evolution of it includes the ancient justice theory which studying theme is mainly about ethics and values ,but the modern justice theory, about freedom, equality and right, the contemporary justice theory taking social policy and system as its studying theme.

According to the difference of the subject of environmental justice, we can divide the environmental justice into three essential types: intra - national justice, international justice and inter-generational justice.

The principle of inter-generational justice means the existing generations should abide by several principles of justice when arranging matters related to future generations instead of do what they want.