 (iii) Scope. For the greatest part, the Ten Modes seem to be concerned with perception in a broad sense, so that it includes pleasure and pain, harm and benefit, as well as pursuit and avoidance. To perceive something as pleasant or beneficial is to pursue it. Perception and evaluation are also mixed in another way: depending on the frequency with which we perceive something, it seems more or less amazing and precious to us. 10–10 envisages oppositions that can be construed with the help of dogmatic theses. The Ten Modes thus fit Sextus’ description of what skepticism is: the ability to put appearances and thoughts (phainomena and nooumena) into opposition (PH 1.8, 1.31–33; cf. DL 9.78).