Philippic 2
Demosthenes
Demosthenes. Vol. I. Olynthiacs, Philippics, Minor Public Speeches, Speech Against Leptines, I-XVII, XX. Vince, J. H., translator. Cambridge, MA: Harvard University Press, 1930 (printing).
For my part I do not believe that Philip, if he acted in the first place reluctantly and under compulsion, or if he were now inclined to throw the Thebans over, would be persistently opposing their enemies. But if we may judge from his present conduct, it is plain that on that occasion also he acted from deliberate choice, and everything, if correctly observed, points to the fact that all his intrigues are directed against Athens.