Episode 130 - Letter to Pythocles 04 - More on the Sun and Moon
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Description
Welcome to Episode One Hundred Thirty of Lucretius Today. This is a podcast dedicated to the poet Lucretius, who wrote "On The Nature of Things," the only complete presentation of...
show moreToday we continue Epicurus' Letter to Pythocles and we look at more phenomena of the sun and moon. Now let's join Martin reading today's text:
BAILEY:
[94] The wanings of the moon and its subsequent waxings might be due to the revolution of its own body, or equally well to successive conformations of the atmosphere, or again to the interposition of other bodies; they may be accounted for in all the ways in which phenomena on earth invite us to such explanations of these phases; provided only one does not become enamoured of the method of the single cause and groundlessly put the others out of court, without having considered what it is possible for a man to observe and what is not, and desiring therefore to observe what is impossible. Next the moon may have her light from herself or from the sun.
[95] For on earth too we see many things shining with their own, and many with reflected light. Nor is any celestial phenomenon against these explanations, if one always remembers the method of manifold causes and investigates hypotheses and explanations consistent with them, and does not look to inconsistent notions and emphasize them without cause and so fall back in different ways on different occasions on the method of the single cause. The impression of a face in the moon may be due to the variation of its parts or to interposition or to any one of many causes which might be observed, all in harmony with phenomena.
[96] For in the case of all celestial phenomena this process of investigation must never be abandoned - for if one is in opposition to clear-seen facts, he can never have his part in true peace of mind.
The eclipse of sun and moon may take place both owing to their extinction, as we see this effect is produced on earth, or again by the interposition of some other bodies, either the earth or some unseen body or something else of this sort. And in this way we must consider together the causes that suit with one another and realize that it is not impossible that some should coincide at the same time.
[97] Next the regularity of the periods of the heavenly bodies must be understood in the same way as such regularity is seen in some of the events that happen on earth. And do not let the divine nature be introduced at any point into these considerations, but let it be preserved free from burdensome duties and in entire blessedness. For if this principle is not observed, the whole discussion of causes in celestial phenomena is in vain, as it has already been for certain persons who have not clung to the method of possible explanations, but have fallen back on the useless course of thinking that things could only happen in one way, and of rejecting all other ways in harmony with what is possible, being driven thus to what is inconceivable and being unable to compare earthly phenomena, which we must accept as indications.
[98] The successive changes in the length of nights and days may be due to the fact that the sun’s movements above the earth become fast and then slow again because he passes across regions of unequal length or because he traverses some regions more quickly or more slowly, (or again to the quicker or slower gathering of the fires that make the sun), as we observe occurs with some things on earth, with which we must be in harmony in speaking of celestial phenomena. But those who assume one cause fight against the evidence of phenomena and fail to ask whether it is possible for men to make such observations.
Information
Author | Cassius Amicus |
Organization | Cassius Amicus |
Website | - |
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