ll the left should be given up in order to introduce peace among them. Furthermore, it is vital for all of them to give up their rights of doing anything they like. Else, the ones giving up their rights become vulnerable to the attacks from those not. So a valid covenant is required to guarantee that everyone gives up his rights.
             Once covenant enters in the scope of attention, Hobbes reaches the point to define his view of justice and injustice. When a person enters a covenant, he incurs an obligation to keep his faith, that is, not to interfere with others' rights he has given up. "When a covenant is made, then to break it is unjust; and the definition of Injustice is no other than the not performance of
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