Really, the fundamental, ultimate mystery -- the only thing you need to know to understand the deepest metaphysical secrets -- is this: that for every outside there is an inside and for every inside there is an outside, and although they are different, they go together.
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.
Truly, there are terrible primal arcana of earth which had better be left unknown and unevoked; dread secrets which have nothing to do with man, and which man may learn only in exchange for peace and sanity; cryptic truths which make the knower evermore an alien among his kind, and cause him to walk alone on earth.
This campaign of non-cooperation has no reference to diplomacy, secret or open. The only diplomacy it admits of is the statement and pursuance of truth at any cost.
All tastes have the quality of being in some way artificial and invented. The secret of life is to have enough detachment from your tastes and your values to see that they are a little bit absurd.
The Galilean is not a favorite of mine. So far from owing him any thanks for his favor, I cannot avoid confessing that I owe a secret grudge to his carpentership.