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ing the stars, in a way which is most true, and [when we are in possession of this] we are not entirely in want of the enumeration of canons, or of the divining art.
If, however, it be necessary, dismissing these particulars, to speak what appears to me to be the truth, you do not rightly infer "that a knowledge of this mathematical science[1] cannot be obtained, because there is much dissonance concerning it, or because Chæremon, or some other, has written against it." For if this reason were admitted, all things will be incomprehensible. For all sciences have ten thousand controvertists, and the doubts with which they are attended are innumerable. As, therefore, we are accustomed to say in opposition to the contentious, that contraries in things that are true are naturally discordant, and that it is not falsities alone that are hostile to each other; thus, also, we say respecting this mathematical science, that it is indeed true; but that those who wander from the scope of it, being ignorant of the truth, contradict it. This, however
- ↑ Viz. The science of calculating nativities.
