Dion and his friends imagined that this outburst marked the end of Dionysius's indignation; and as Plato was now anxious to leave Sicily they obtained a passage for him on board of a trireme which was about to convey home Pollis, the Lacedæmonian envoy. Dionysius however secretly besought Pollis to put Plato to death during the voyage, or at any rate to sell him for a slave, because, he said, Plato, according to his own showing, would be none the worse off for being a slave, but would be just as happy, provided that he was just. In consequence of this we are told that Pollis took Plato to Ægina and there sold him, because the people of Ægina were at that time at war with the Athenians, and had passed a decree that any Athenian found in Ægina should be sold for a slave.[482] Yet Dion was no less honoured and trusted by Dionysius in consequence of this, but was entrusted with the management of the most important negotiations, and was himself sent as ambassador to Carthage, in which capacity he gained great credit. Indeed he was almost the only person whom Dionysius allowed freely to speak his mind, as is proved by the reproof which he gave Dionysius about Gelon. It appears that Dionysius was sneering at Gelon and his kingdom, and saying that he was the laughing-stock of Sicily. All the other courtiers pretended to approve of this jest, but Dion harshly answered, "Yet you have been allowed to become our despot because of the good example set by Gelon; but your example will not encourage any state to imitate us." In truth Gelon's conduct as an absolute monarch seems to have been just as admirable as that of Dionysius was detestable.