Such facts show us what is the value of the testimony of crowds. Treatises on logic include the unanimity of numerous witnesses in the category of the strongest proofs that can be invoked in support of the exactness of a fact. Yet what we know of the psychology of crowds shows that treatises on logic need on this point to be rewritten. The events with regard to which there exists the most doubt are certainly those which have been observed by the greatest number of persons. To say that a fact has been simultaneously verified by thousands of witnesses is to say, as a rule, that the real fact is very different from the accepted account of it. It clearly results from what precedes that works of history must be considered as works of pure imagination. They are fanciful accounts of ill-observed facts, accompanied by explanations the result of reflection. To write such books is the most absolute waste of time. Had not the past left us its literary, artistic, and monumental works, we should know absolutely nothing in reality with regard to bygone times. Are we in possession of a single word of truth concerning the lives of the great men who have played preponderating parts in the history of humanity--men such as Hercules, Buddha, or Mahomet? In all probability we are not. In point of fact, moreover, their real lives are of slight importance to us. Our interest is to know what our great men were as they are presented by popular legend. It is legendary heroes, and not for a moment real heroes, who have impressed the minds of crowds. Unfortunately, legends--even although they have been definitely put on record by books--have in themselves no stability. The imagination of the crowd continually transforms them as the result of the lapse of time and especially in consequence of racial causes. There is a great gulf fixed between the sanguinary Jehovah of the Old Testament and the God of Love of Sainte Therese, and the Buddha worshipped in China has no traits in common with that venerated in India.