Against Boeotus I
Demosthenes
Demosthenes. Vol. IV. Orations, XXVII-XL. Murray, A. T., translator. Cambridge, MA: Harvard University Press, 1936 (printing).
He had the effrontery, moreover, to make before the arbitrator the most audacious assertions, that my father kept the tenth day after birth for him, just as for me, and gave him the name Mantitheus; and he brought forward as witnesses persons with whom my father was never known to be intimate. But I think that not one of you is unaware that no man would have kept the tenth day for a child which he did not believe was rightly his own; nor, if he had kept the day and shown the affection one would feel for a son, would afterward have dared to deny him.