But when he arrived in Boeotia and the Thebans said that now was the right moment to attack the Lacedaemonians, he with his mercenaries from the heights above and they by a frontal assault, Jason sought to dissuade them, pointing out that since they had done a good work, it was not worth while for them to venture a decisive engagement in which they would either accomplish yet greater things or would be deprived of the victory already gained.