And yet it was hard to give up heaven. Among the books on our shelves—many of them orthodox religious books—was one that had a frontispiece which I had accepted as a definite picture of the heaven to which I was to go. Jehovah sat on a throne, cherubim and seraphim around him, rank upon rank of angels filling the great amphitheater below. I always wondered where my place would be, and whether there would be any chance to work up in heaven as there seemed to be on earth, to become a cherub. But giving up this heaven was by no means the greatest tragedy in my discovery that the world was not made in six days of twenty-four hours each. The real tragedy was the birth in me of doubt and uncertainty. Nothing was ever again to be final. Always I was to ask myself when confronted with a problem, a system, a scheme, a code, a leader, “How can I accept without knowing more?” The quest of the truth had been born in me—the most tragic and incomplete, as well as the most essential, of man’s quests. It was while groping my way, frightened like a lost child, I found a word to hold to—evolution. Things grew. What did they grow from? They all started somewhere. I was soon applying the idea. Nothing seemed to matter now, except to find the starting point of things and, having that, see why and how they grew into something else. How were you to go to work to find the start of life? With a microscope. And I soon was in the heat of my first intellectual passion, my first and greatest—that for the microscope. With a microscope I could perhaps get an answer to my mystification about the beginning of life, where it started; and then, I believed, I should find God again. I was a practical person apparently, for I at once began to save my money and soon had enough to put into a small instrument. The house in Titusville, like many of its period, had a tower room, a steep staircase running up to it. This room was surrounded on three sides with big double windows. I begged to have it for my own. Here I was allowed to set up shop; here I had my desk, my papers, and my microscope; here I was alone with my problems. That little microscope had a good deal to do with my determination to go to college. If I was to become a microscopist—I had already adopted that word—I must study, get an education.