If by power we are to understand sheer potentiality, I know of no sufficient evidence that enables us to say whether, under ideal conditions, the average degree of mental capacity would in the two cases prove the same or different.

But I am sure that the ordinary peasant of Europe, whose society provides him, in the shape of an analytic language, with a ready-made instrument for all the purposes of clear thinking, starts at an immense advantage, as compared with a savage whose traditional speech is holophrastic.
Whatever be his mental power, the former has a much better chance of making the most of it under the given circumstances.

"Give them the words so that the ideas may come," is a maxim that will carry us far, alike in the education of children, and in that of the peoples of lower culture, of whom we have charge..