23. But this, said I, seems rather to refute and check the reflection and reverberation which is said to rebound from the moon; because those who are within retorted rays do not only see that which is enlightened, but also that which enlightens. For when, at the resulting of light from water upon a wall, the sight falls upon the place which is thus illuminated by the reflection, the eye there beholds three things, to wit, the ray or light that is driven back, the water which makes the reflection, and the sun himself, whose light, falling on the superficies of the water, is repulsed and sent back. This being confessed, as what is evidently seen, it is required of those who say that the earth is enlightened from the moon by the reflections of the sun’s rays upon it, that they show us by night the sun appearing upon the superficies of the moon, in the same manner as he may be seen by day appearing in the water on which he shines when there is the said reflection of his beams. But since the sun does not so appear, they thence infer that the moon receives her illumination by some other means, and not by reflection; and if there is no reflection, the moon then is not earth. What answer then is to be made them, said Apollonides? For the argument of this objection against reflection is common also to us. It is indeed, answered I, in some sort common, and in some sort not. But first consider the comparison, how perversely and against the stream they take it. For the water is here below on the earth, and the moon there above in heaven. So that the reflected and reverberated rays make the form of their angles quite opposite one to the other, the one having their point upwards towards the superficies of the moon, and the other downwards toward the earth. Let them not then require that from every form of mirror, nor that from every distance and remoteness, there should be a like and semblable reflection; for so doing they would repugn notorious and apparent evidence. And as for those who hold the moon to be a body not smooth, even, and subtile as the water, but solid, massy, and terrestrial, I cannot conceive why they should require to see the image of the sun in her as in a glass. For neither does milk itself render such peculiar images, nor cause reflection of the sight, by reason of the inequality and ruggedness of its parts. How then is it possible that the moon should send back the sight from her superficies, as mirrors do that are more polished? And if in these also there is any scratch, filth, or dulness on their superficies whence the reflected sight is wont to receive a form, they are dimmed, and although the mirrors may be seen, they yield no counterlight. He then who requires that either the sun should appear in the moon, or else the moon should not reflect the sun’s light to us, might as well require that the eye be the sun, the sight light, and man heaven. For it is probable, that the reflection of the sun’s beams which is made