If the present civilisation does not acquire some stable moral fondations ("bases morales stables", Fr.), its existence will hardly be more assured than that of the civilisations that have preceeded it, and which have fallen (or collapse, or failed).
Before turning to those moral and mental aspects of the matter which present the greatest difficulties, let the inquirer begin by mastering more elementary problems.
Most commonly revolt is born of material circumstances; but insurrection is always a moral phenomenon. Revolt is Masaniello, who led the Neapolitan insurgents in 1647; but insurrection is Spartacus. Insurrection is a thing of the spirit, revolt is a thing of the stomach.