Joseph McCabe,
The Story of Evolution — Chapter XX. The Dawn of Civilisation
“ It must not, of course, be supposed that this stage of human culture only began with the invasion of Europe. Men would bring their rough art of fashioning implements with them, but the southern regions are too little explored to inform us of the earlier stage. But as man enters Europe he begins to drop his flints on a soil that we have constant occasion to probe—although the floor on which he trod is now sometimes forty or fifty feet below the surface—and we obtain a surer glimpse of the fortunes of our race. ”
