The right of eminent domain is the power inherent in the State, to take by due process of law from an owner, his land when necessity arises. Only two requirements must be met; the use must be public, and just compensation paid to the owner. Whether or not he wants to surrender his land makes no difference, nor can he set his own price. His desires are not consulted and a fair valuation fixed by expert appraisers is paid him. Land is obtained for streets, parks and public buildings by means of the exercise of this power.