The attempt to disengage the history of times forgotten and unknown, by means of analysis of roots and words in Aryan languages, has been unsuccessful, or has at best produced disputable results.
Here Aristotle, starting from the previous grammar of sentences in general, proceeded, for the first time in philosophical literature, to disengage the logic of the proposition, or that sentence which can alone be true or false, whereby it alone enters into reasoning.
So far, however, as it is possible to disengage one's self from this captivation, it may be said that the mingling of distinct and original vision with a singularly conscientious handling of the English language, in the sincere and wholesome self-consciousness of the strenuous artist, seems to be the central feature of Stevenson as a writer by profession.
The words introducing this form (6Tav bE TO '&TL Tptrov irpoo-KaTnyopijTac, chap. so, s 9 b s 9), which are the origin of the phrase tertii adjacentis, disengage the verb of being (g un) partially but not entirely, because they still treat it as an extra part of the predicate, and not as a distinct copula.
All three alike strove to disengage their minds from classical as well as ecclesiastical authority, proving that the emancipation of the will had been accomplished.
But mixture and connexion of races have in this as in many other cases so changed the original folk-product that it is difficult to disengage and separate the different strains that have gone to the making or moulding of the result as we have it.