find that such wonderful order is produced by principles so simple. I know not, rejoined I, how you have acquired such rational ideas, for, to say the truth, they are not very common. The generality are affected only by the obscure and marvellous. They admire nature merely because they consider it a sort of magic; something too occult for the understanding to reach: to them a thing appears contemptible as soon as they find the possibility of explaining its nature: but you, madam, can reason so clearly, that I have only to draw aside the veil, and present the world to your inspection. What we behold at the greatest distance from our earth is the azure heaven, that immense arch to which the stars seem firmly to adhere. They are called fixed, because they appear to have no other motion than that of their sky, carrying them from east to west. Between the earth and the remote firmament are suspended, at various distances, the sun, moon, and the other five stars, denominated planets; Mercury, Venus, Mars, Jupiter and Saturn.[6] These planets not being stationary at one point in the heavens, but having unequal motions, vary with respect to their relative situations; the fixed stars, on the contrary, always bear the same local relation to each other. The chariot, for instance, that you may distinguish, formed of those seven stars, has always had that configuration, and is likely to retain it; but the moon sometimes approaches nearer to the sun; sometimes retreats farther from it; the same is observed of the other planets. Such were the observations made by the Chaldean shepherds whose continual leisure enabled them to give so much attention to the heavenly bodies as to form the rudiments of astronomy, for we learn that that science took its rise in Chaldea,[7] as Geometry was first studied in Egypt, where the inundations of the Nile destroyed the boundaries of different possessions, made the inhabitants desirous of exact measures by which they could again separate their own lands from those of their neighbours. Thus astronomy is the offspring of idleness, geometry of interest; and if we enquire into the origin of poetry, we shall probably find that she is the daughter of love. [Footnote 6: In 1781, M. Herschel discovered a sixth. Astronomy by Lalande, third edition, 1792, Vol. 1, Art. 116.] [Footnote 7: Perhaps in Ethiopia. Astronomy, Art. 260.]