The austere character of a faith which, at its inception, exacts a rigid compliance with the minutest formalities of its ritual, naturally becomes relaxed and modified after that system has attained to worldly importance and imperial authority; or, in the language of one of the greatest of modern writers, “a dominant religion is never ascetic.” It is strange that Islam, which, in this respect, as in many others, has conformed to the general law of humanity, and now acknowledges tenets and allows practices that would have struck the subjects of Abu-Bekr and Omar with amazement, has been able to preserve in such perfection the observance of its ceremonial; especially when it had no organized sacerdotal power to sustain it. The absence of an ecclesiastical order which could dictate the policy of the throne, and humble the pride of the ermine and purple with the dust in the presence of some audacious zealot, also left untrammelled the way for scientific investigation and research, and, more than all else, contributed to dispel the darkness of mediæval times. The doctrine of toleration enunciated by Mohammed gave no encouragement to that system of repression whose activity has exhausted every means of checking the growth of philosophical knowledge, by imposing the most direful spiritual and temporal penalties upon every teacher who ventures to publicly explain its principles; and it is a matter of far deeper import to the civilization of the twentieth century, than is implied by the mere performance of an act of devotion, when the Temple of Mecca--the seat of a time-honored faith, from whose shrine emanated the spirit of learning that redeemed degraded Europe--is saluted five times every day by the reverent homage of concentric circles of believers, one hundred and fifty million in number, from Tangier to Pekin, from the borders of Siberia to the Equinoctial Line.