Too Long A Parasite And You Cannot Exist Without A Host - A Quotation by Frank Herbert

Do you know what guerrillas say?  They claim that their rebellions are invulnerable to economic warfare because they have no economy, that they are parasitic on those they would overthrow.  The fools merely fail to assess the coin in which they must inevitably pay.  The pattern is inexorable in its degenerative failures.  You see it repeated in the systems of slavery, of welfare states, of caste-ridden religions, of socialising bureaucracies--in any system which creates and maintains dependencies.  Too long a parasite and you cannot exist without a host.
                                                
                                                                  - The Stolen Journals

Note:   This quotation by taken from the science fiction book entitled, God Emperor of Dune by Frank Herbert.