As a matter of fact, a national language which spreads beyond its own confines very quickly loses much of its original richness of content and is in no better case than a constructed language.
National languages are all huge systems of vested interests which sullenly resist critical inquiry.
More and more, unsolicited gifts from without are likely to be received with unconscious resentment.
Human beings do not live in the objective world alone, nor alone in the world of social activity as ordinarily understood, but are very much at the mercy of the particular language which has become the medium of expression for their society.
One of the glories of English simplicity is the possibility of using the same word as noun and verb.
A second type of direct evidence is formed by statements, whether as formal legends or personal information, regarding the age or relative sequence of events in tribal history made by the natives themselves.