24 Such was the case, and his galleon was laden with all the learning attainable by the nature of man; for beyond Cadiz there is no passage. There was left no other need but that of rising to a more perfect life, and grasping those hopes upon which we were agreed. The day of our departure was at hand, with its attendant speeches of farewell, and of escort, its invitations to return, its lamentations, embraces and tears. For there is nothing so painful to any one, as is separation from Athens and one another, to those who have been comrades there.
On that occasion was seen a piteous spectacle, worthy of record. Around us were grouped our fellow students and classmates and some of our teachers, protesting amid entreaties, violence, and persuasion, that, whatever happened, they would not let us go; saying and doing everything that men in distress could do. And here I will bring an accusation against myself, and also, daring though it be, against that divine and irreproachable soul. For he, by detailing the reasons of his anxiety to return home, was able to prevail over their desire to retain him, and they were compelled, though with reluctance, to agree to his departure.
But I was left behind at Athens, partly, to say the truth, because I had been prevailed on— partly because he had betrayed me, having been persuaded to forsake and hand over to his captors one who refused to forsake him. A thing incredible, before it happened. For it was like cutting one body into two, to the destruction of either part, or the severance of two bullocks who have shared the same manger and the same yoke, amid pitiable bellowings after one another in protest against the separation.
However, my loss was not of long duration, for I could not long bear to be seen in piteous plight, nor to have to account to every one for our separation: so, after a brief stay at Athens, my longing desire made me, like the horse in Homer, to burst the bonds of those who restrained me, and prancing o'er the plains, rush to my mate.
Source: Orations (New Advent)