In On the Nature of the Gods Cicero explains his own metaphysical interpretation of the universe. The soul of the interpretation is pantheistic, and he notably relies on many keen syllogisms about the universe to support his explanation.
“How is it that the tides of the open sea and the narrow straits move to the waxing and waning of the moon, while the unequal orbits of the stars stay constant with each full turning of the heavens? This harmony of all parts of the universe is impossible unless they are held together by a single, divine, all-pervading spirit.
“It’s all but impossible to pollute a flowing stream, easy enough to poison a cistern. So, too, a rush of eloquence washes away objections, while a thin trickle of reasoning has a hard time protecting itself.
“Everything that lives, whether animal or product of the earth, lives thanks to the heat within it – from which we should understand that elemental heat contains a vital power that permeates the entire universe.
“It will be possible to infer, as well, that the universe possesses intelligence, for it is surely superior to any one element. Just as every individual part of our body is inferior to ourselves, so the universe must be greater than any part of the universe. But if that’s the case, then the universe must be wise, for if it weren’t, then man, who is part of the universe, would, in that he has a share of reason, be greater than the whole universe.
“Nothing can move to such a patterned rhythm without design. The orderliness of the constellations and their steadfast movement through eternity are not simply automatic…nor the work of fortune, which loves variety and rejects consistency. It follows therefore that they move of their own volition, thanks to their own judgement and divine power.
*All excerpts have been taken from Cicero: On Living and Dying Well, Penguin Classics.
The eighteenth century political philosopher Montesquieu examines the constituent features of Roman culture which contributed to the collapse of the Roman Republic. Montesquieu argues that the increasing territorial, as well as material grandeur of the Roman Republic magnified already existing constitutional schisms, and that the primal bellicosity of the Roman people lingered as a tinderbox for civil strife long after external conflicts had ended.
“The reason why free states are not so permanent as other forms of government, is, because the misfortunes and successes which happen to them, generally occasion the loss of liberty; whereas the successes and misfortunes of an arbitrary government, contribute equally to the enslaving of the people.
“Authors enlarge very copiously on the divisions which proved the destruction of Rome; but their readers seldom discover those divisions to have been always necessary and inevitable. The grandeur of the republic was the only source of that calamity, and exasperated popular tumults into civil wars. Dissensions were not to be prevented, and those martial spirits, which were so fierce and formidable abroad, could not be habituated to any considerable moderation at home.
“Those who expect in a free state, to see the people undaunted in war and pusillanimous in peace, are certainly desirous of impossibilities; and it may be advanced as a general rule, that whenever a perfect calm is visible, in a state that calls itself a republic, the spirit of liberty no longer subsists.
“It must be acknowledged that the Roman laws were too weak to govern the republic: but experience has proved it to be an invariable fact, that good laws, which raise the reputation and power of a small republic, become incommodious to it, when once its grandeur is established, because it was their natural effect to make a great people, but not to govern them.
“Rome was founded for grandeur, and its laws had an admirable tendency to bestow it; for which reason, in all the variations of her government, whether monarchy, aristocracy, or popular, she constantly engaged in enterprises which required conduct to accomplish them, and always succeeded. The experience of a day did not furnish her with more wisdom than all other nations, but she obtained it by a long succession of events. She sustained a small, a moderate, and an immense fortune with the same superiority, derived true welfare from the whole train of her prosperity, and refined every instance of calamity into beneficial instructions… She lost her liberty, because she completed her work too soon.
*All excerpts have been taken from Considerations on the Causes of the Grandeur and Declension of the Roman Empire, Public Domain.