Do you wish from slight indications to have a proof of the moon’s size?  All the towns in the world, however distant from each other, equally receive the light from the moon in those streets that are turned towards its rising.  If she did not look on all face to face, those only would be entirely lighted up which were exactly opposite; as to those beyond the extremities of her disc, they would only receive diverted and oblique rays.  It is this effect which the light of lamps produces in houses; if a lamp is surrounded by several persons, only the shadow of the person who is directly opposite to it is cast in a straight line, the others follow inclined lines on each side.  In the same way, if the body of the moon were not of an immense and prodigious size she could not extend herself alike to all.  In reality, when the moon rises in the equinoctial regions, all equally enjoy her light, both those who inhabit the icy zone, under the revolutions of the Bear, and those who dwell in the extreme south in the neighbourhood of the torrid zone.  She gives us an idea of her size by appearing to be face to face with all people.  Who then can deny the immensity of a body which divides itself equally over such a wide extent?