(43.) Observe, Lucilius,[871] this spot of ground, which for neatness and ornament exceeds all other neighbouring estates; here are plots with the finest lakes and fountains, and endless hedge-rows of trees which shelter you against the north winds; on this side is a thick grove where the sun cannot penetrate; on the other side you have a beautiful view; a little lower, the Yvette or the Lignon,[872] which were running modestly between willows and poplars, have now become a canal quite bricked in; elsewhere long and cool avenues lead to the country, and foreshadow what the mansion will be, which is surrounded by water. Will you say, “This is an effect of chance,” and suppose that all these admirable things met together accidentally? No, certainly; on the contrary, you observe that everything is well planned and arranged, and displays good taste and much intelligence. I agree with you, and take the liberty to add that I suppose it to be the residence of one of those men, who from the very minute they get into office, send for a Le Nôtre[873] to draw plans and take measurements. Yet what is this piece of ground so exquisitely laid out, on which a most skilful artist has employed all his science in order to embellish it, if the whole earth is but an atom suspended in the air, and if you will but listen to what I am going to say? You are placed, Lucilius, on some part of this atom; you must needs be very little, since you take up so little room on it; yet you have eyes, like two imperceptible points; open them, however, and look up to the heavens; what do you sometimes perceive there? Is it the moon in its full? It is beautiful and very radiant at the time, though all its light be but the reflection of the light of the sun; it appears as large as the sun itself, larger than the other planets, than any of the stars, but do not be deceived by outward appearances. Nothing in the heavens is so small as the moon; its superficies exceeds not the thirteenth part, and its volume not the eight and fortieth part of the earth, whilst its diameter, which is two thousand two hundred and fifty miles, is but a fourth of the diameter of the earth. What makes it really appear so great is its proximity only; for its distance from us is no more than thirty times the diameter of the earth, or three hundred thousand miles.[874] Its motion is small in comparison to the prodigious long career of the sun through the spacious firmament;[875] for it is certain the moon does not move at the rate of above sixteen hundred and twenty thousand miles a day,[876] which is not above sixty-seven thousand five hundred miles per hour, or one thousand one hundred and twenty-five in a minute. And yet, to complete this course it must move five thousand six hundred times faster than a race-horse running twelve miles an hour; it must be eighty times swifter than sound—than the report, for example, of a gun or of thunder, which moves