Excerpt from The Relative Strength of Nurture and Nature We might for example discover that the mentally and physically fitter child comes from the cleaner and less crowded home, and therefore argue that the spread of such homes is a condition for national progress. But further investigation might show that the essential condition for such homes is the exist ence of mentally and physically fit parents, and that the fitness of the children ows after all from the parentage and not from the home. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."