Chapter I: The Principal Differences between Philosophers

It is probable that those who seek after anything whatever, will 1 either find it as they continue the search, will deny that it can be found and confess it to be out of reach, or will go on seeking it. Some have said, accordingly, in regard to the things sought in philosophy, that they have found the truth, while 2 others have declared it impossible to find, and still others continue to seek it. Those who think that they have found it are those who are especially called Dogmatics, as for example, the Schools of Aristotle and Epicurus, the Stoics and some others. Those who have declared it impossible to find are Clitomachus, 3 Carneades, with their respective followers, and other Academicians. Those who still seek it are the Sceptics. It appears therefore, reasonable to conclude that the three 4 principal kinds of philosophy are the Dogmatic, the Academic, and the Sceptic. Others may suitably treat of the other Schools, but as for the Sceptical School, we shall now give an outline of it, remarking in advance that in respect to nothing that will be said do we speak positively, that it must be absolutely so, but we shall state each thing historically as it now appears to us.