▼37:16The phrase ‘perfectas scientias’ is probably an idiomatic expression referring to a particular field of knowledge. Consider the English expression ‘the sweet science,’ which refers to boxing. It does not refer to sweet flavor, nor to a science properly speaking. Similarly, the ‘perfect sciences’ or ‘perfect areas of knowledge’ is most likely a figure of speech referring to a field of study, such as the study of weather, and perhaps also the study of the night sky, i.e. of the sun, moon, planets, and stars.(Conte)