"Yes, aren't they odd, the thoughts that float through one's mind for no reason? But why not be frank—I suppose the best of us are shocked at times by the things we find ourselves thinking. Don't you agree," I went on, not noticing (until it was too late) that all other conversation had ceased, and the whole dinner-party was listening, "don't you agree that the oddest of all are the improper thoughts that come into one's head—the unspeakable words I mean, and Obscenities?" When I remember that remark, I hasten to enlarge my mind with ampler considerations. I think of Space, and the unimportance in its unmeasured vastness, of our toy solar system; I lose myself in speculations on the lapse of Time, reflecting how at the best our human life on this minute and perishing planet is as brief as a dream.