Sextus Empiricus Pyrrhoniae Hypotyposes 2.9.88

[88] Furthermore, the true things are either apparent only, or non-evident only, or in part non-evident and in part apparent; ¹ but none of these alternatives is true, as we shall show; therefore nothing is true. If, however, the true things are apparent only, they will assert either that all or that some of the apparent are true. And if they say ‟all,” the argument is overthrown; for it is apparent to some that nothing is true. If, again, they say ‟some,” no one can assert without testing that these phenomena are true, those false, while if he employs a test or criterion he will say either that this criterion is apparent or that it is non-evident. But it is certainly not non-evident; for it is now being assumed ² that the apparent objects only are true.