Carneades, a worthy successor of Arcelisaus as head of the Academy, was one of three philosophers sent by Athens on a diplomatic mission to Rome in the year 156 BC. He saw no reason why his ambassadorial dignity should interfere with the main chance, so he announced a course of lectures in Rome.
2009, Karen Armstrong, The Case for God, Vintage 2010, p. 105:
They had to find a way of instructing the flood of new converts presenting themselves for baptism, some, doubtless, with an eye on the main chance.