Chapter IX Does the Sceptic Study Natural Science?
We reply similarly also to the question whether the Sceptic should study natural science. For we do not study natural science in order to express ourselves with confidence regarding any of the dogmas that it teaches, but we take it up in order to be able to meet every argument by one of equal weight, and also for the sake of ἀταραξία. In the same way we study the logical and ethical part of so-called philosophy.