great outlines lowered at me in the twilight, full of fresh memories and grim anticipations of baseness and violence and bloodshed! I sit here recalling it--feeling it all out beyond the trellised vine-clad wall that bounds my physical vision.... Vast crowded world that I have seen! going from point to point seeking for clues, for generalities, until at last it seems to me that there emerges--something understandable. I think I have got something understandable out of it all. What a fantastically courageous thing is this mind of ours! My thoughts seem to me at once presumptuous and inevitable. I do not know why it is that I should dare, that any of us should dream of this attempt to comprehend. But we who think are everyone impelled to this amazing effort to get it all together into some simple generality. It is not reason but a deep-seated instinct that draws our intelligence towards explanations, that sets us perpetually seeking laws, seeking statements that will fit into infinite, incessantly interweaving complexities, and be true of them all! There is I perceive a valiant and magnificent stupidity about the human mind, a disregard of disproportion and insufficiency--like the ferret which will turn from the leveret it has seized to attack even man if he should interfere. By these desperate feats of thinking it is that our species has achieved its victories. By them it survives. By them it must stand the test of ultimate survival. Some forgotten man in our ancestry--for every begetting man alive was in my individual ancestry and yours three thousand years ago--first dared to think of the world as round,--an astounding temerity. He rolled up the rivers and mountains, the forests and plains and broad horizons that stretched beyond his ken, that seemed to commonsense to go on certainly for ever, into a ball, into a little ball "like an orange." Magnificent feat of the imagination, outdoing Thor's deep draught of the sea! And once he had done it, all do it and no one falters at the deed. You are not yet seven as I write and already you are serenely aware that you live upon a sphere. And in much the same manner it is that we, who are sociologists and economists, publicists and philosophers and what not, are attempting now to roll up the vast world of facts which concern human intercourse, the whole indeed of history and archæology, into some similar imaginable and manageable shape, that presently everyone will be able to grasp.