Therefore do I now plead for our Common Humanity in all lands. Especially do I plead for the African, not only among us, but in his own vast, mysterious home, where for unknown centuries he has been the prey of the spoiler. He may be barbarous, perhaps savage; but so have others been, who are now in the full enjoyment of civilization. If you are above him in any respect, then by your superiority are you bound to be his helper. Where much is given much is required; and this is the law for a nation, as for an individual. The unhappy condition of Africa, a stranger to civilization, is often invoked against a Common Humanity. Here again is that sciolism which is the inseparable ally of every ignoble pretension. It is easy to explain this condition without yielding to a theory inconsistent with God’s Providence. The key is found in her geographical character, affording few facilities for intercommunication abroad or at home. Ocean and river are the natural allies of civilization, as England will attest; for such was their early influence, that Cæsar, on landing, remarked the superior condition of the people on the coast.[167] Europe, indented by seas on the south and north, and penetrated by considerable rivers, will attest also. The great geographer, Carl Ritter, who has placed the whole globe in the illumination of geographical science, shows that the relation of interior spaces to the extent of coast has a measurable influence on civilization: and here is the secret of Africa. While all Asia is five times as large as Europe, and Africa more than three times as large, the littoral margins have a different proportion. Asia has 30,800 miles of coast; Europe 17,200; and Africa only 14,000. For every 156 square miles of the European continent there is one mile of coast, while in Africa one mile of coast corresponds to 623 square miles of continent. The relative extension of coast in Europe is four times greater than in Africa. Asia is in the middle between the two extremes, having for every 459 square miles one mile of coast; and so also is Asia between the two in civilization. There is still another difference, with corresponding advantage to Europe. One third part of Europe is in the nature of ramification from the mass, furnishing additional opportunities; whereas Africa is a solid, impenetrable continent, without ramifications, without opening gulfs or navigable rivers, except the Nile, which once witnessed the famous Egyptian civilization.[168] And now, in addition to all these opportunities by water, Europe has others not less important from a reticulation of railways, bringing all parts together, while Africa is without these new-born civilizers. All these things are apparent and beyond question; nor can their influence be doubted. And thus is the condition of Africa explained without an insult to her people or any new apology for Caste.