“We are ignorant of the laws of variety-production; but we see it going on as a principle in nature”
Robert Chambers (publisher, born 1802) book Vestiges of the Natural History of Creation
Source: Vestiges of the Natural History of Creation (1844), p. 283
Context: We are ignorant of the laws of variety-production; but we see it going on as a principle in nature, and it is obviously favorable to the supposition that all the great families of men are of one stock.