Chapter 20

Chapter 20

I sat one evening in my laboratory; the sun had set, and the moon was just
rising from the sea; I had not sufficient light for my employment, and I
remained idle, in a pause of consideration of whether I should leave my
labour for the night or hasten its conclusion by an unremitting attention
to it. As I sat, a train of reflection occurred to me which led me to
consider the effects of what I was now doing. Three years before, I was
engaged in the same manner and had...