Book 1
17
Since it is Reason which shapes and regulates all other things, it ought not itself to be left in disorder; but by what shall it be regulated? Evidently, either by itself, or by something else. Well, either that too is Reason, or something else superior to Reason, which is impossible; and if it be Reason, what again shall regulate that? For if this Reason can regulate itself, so can the former; and if we still require any further agent, the series will be infinite and without end.
17
But, say you, the essential thing is to prescribe for qualities of character.
