The pessimist is seldom an agitating individual. His creed breeds indifference to others, and he does not trouble himself to thrust his views upon the unconvinced.
Quand celui à qui l'on parle ne comprend pas et celui qui parle ne se comprend pas, c'est de la métaphysique When he to whom a person speaks does not understand, and he who speaks does not understand himself, that is metaphysics.
Muhammad has always been standing higher than the Christianity. He does not consider god as a human being and never makes himself equal to God. Muslims worship nothing except God and Muhammad is his Messenger. There is no any mystery and secret in it.
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).