These memories are the memorials and pledges of the vital hours of a lifetime. These hours of afflatus in the human spirit, the springs of art, are, in their mystery, akin to the epochs of history, when a race which for centuries has lived content, unknown, behind its own frontiers, digging, eating, sleeping, begetting, doing what was requisite for survival and nothing else, will, for a generation or two, stupefy the world; commit all manner of crimes, perhaps; follow the wildest chimeras, go down in the end in agony, but leave behind a record of new heights scaled and new rewards won for all mankind; the vision fades, the soul sickens, and the routine of survival starts again.