Sometimes when led to investigate the inner tribunal, conscience, I contemplate a phenomenon purely intellectual and moral, which the uproar raised by the conflict of so many heterogeneous ideas cannot make me forget, although it does not intrude itself upon me with violence; on the contrary, it waits with an unparalleled patience and discretion at my door. It is the phenomenon named religion. We read in the Bible that Moses, having noticed a burning bush that yet was not consumed, went up to it, the more closely to investigate this marvel. For many people religion has borne the same aspect that the burning bush did for Moses, and those, like Moses, have approached it in the endeavour to discover what it could be. Religion has always compelled attention, its metaphysical side has been described in voluminous theological and philosophical treatises; historians on their side have made many researches concerning the forms in which it has clothed itself on earth during a long succession of centuries, and amongst many peoples; it is even said there are learned men who have studied all the Bibles and catechisms; and it is added that few amongst them know what religion really is. It does not on that account play a less important part in our existence; it is from religion that all those acts of devotion and charity spring, to which millions of human creatures give themselves. There are few who ask themselves whence comes this breath which inspires them so fully, and since when has its influence extended itself amongst us; to be nourished with its fruits sufficed. Such is the disposition of soul of the majority of those for whom religion is more than a name--whatsoever it be--pronounced in an unknown tongue. Would it not be natural to desire to make its acquaintance more closely? Apparently not; we accept it as something known by intuition, without concerning ourselves with its aspect. This strange fact I have also noticed. When studying history very attentively, and with an attitude of mind free from all prejudice, it is possible to fix the exact period at which errors, more or less generally acknowledged as such, have first crept into the world; but I have vainly sought in history for the corresponding moment when truths first made their appearance; truths, which have been accepted, if only by a few isolated individuals, or by certain groups of individuals, of whatever race, or of whatever period of the life of humanity they might be. But as it is acknowledged that amongst the errors which trouble us, we possess some truths, it is evident that they have manifested themselves; but when and how? At this I do not arrive.