“If we look round the world, there seem to be not above six distinct varieties in the human species, each of which is strongly marked, and speaks the kind seldom to have mixed with any other. But there is nothing in the shape, nothing in the faculties, that shows their coming from different originals; and the varieties of climate, of nourishment, and custom, are sufficient to produce every change.”
![“[T]here are depths of thousands of miles which are hidden from our inquiry. The only tidings we have from those unfathomable regions are by means of volcanoes, those burning mountains that seem to discharge their materials from the lowest abysses of the earth.” quote by Oliver Goldsmith](https://sms4smile.com/quotes/img-quotes/b7d/oliver-goldsmith-772_abyss_t-here-are-depths-of-thousands-of-miles_88121.jpg)
