16.A society in which the observance of the law is not assured,nor the separation of powers defined,has no constitution at all. 17.Since property is an inviolable and sacred right,no one shall be deprived thereof except where public necessity,legally determined, shall clearly demand it,and then only on condition that the owner shall have been previously and equitably indemnified.16. A society in which the observance of the law is not assured， nor the separation of powers defined， has no constitution at all. 17. Since property is an inviolable and sacred right， no one shall be deprived thereof except where public necessity， legally determined， shall clearly demand it， and then only on condition that the owner shall have been previously and equitably indemnified