Full Idea
Are we to find a divinity in every regular movement and in everything which happens in a constant order? If so, we shall have to say that tertian and quartan agues are divine because their course and recurrence is absolutely uniform.
Gist of Idea
If everything with regular movement and order is divine, then recurrent illnesses must be divine
Source
M. Tullius Cicero (On the Nature of the Gods ('De natura deorum') [c.44 BCE], III.24)
Book Reference
Cicero: 'The Nature of the Gods', ed/tr. McGregor,Horace [Penguin 1972], p.202