Meanings of uncivilized races in English

Do they not disprove my theory that uncivilized races are incapable of feeling sentimental love?

Among most uncivilized races there appear to be few or no "sexually frigid" women.

The problem of the negro and of the Indian, and of all the uncivilized races, is essentially the same.

Now, stealing brides, or eloping to avoid having to pay for them, is of frequent occurrence everywhere among uncivilized races.

Again, uncivilized races, and the bravest and most energetic still more than the rest, are averse to continuous labor of an unexciting kind.

The study of past times and uncivilized races makes it clear beyond question that the customary beliefs of tribes or nations are almost invariably false.

J. G.: The Uncivilized Races.