Titus Livius (Livy), The History of Rome, Book 31
Evan T. Sage, Ph.D. Professor of Latin and Head of the Department of Classics in the University of Pittsburgh, Ed.

15. The citizens were at once summoned to an assembly, that the king might declare publicly what he desired; [2] then it seemed more consonant with his dignity that he should write his message, on whatever matters he pleased, than deliver it in person and be embarrassed by his own recital of his services to the state or by the extravagant applause and eulogies of the crowd, which would overwhelm his modesty with its uncontrolled adulation. [3] The letter which was sent and read to the assembly contained, first, a review of his acts of generosity towards Athens; [4] second, an account of the campaigns he had carried on against Philip, and, lastly, an exhortation to undertake the war against Philip while they had him, the Rhodians, and now particularly the Romans also as allies; in vain, later on, if they now hesitated, would they seek to grasp the opportunity they had let slip. [5] The Rhodian envoys were next heard, whose recent display of good-will had consisted in sending back four Athenian war-vessels which had, not long before, been captured by the Macedonians and recovered.¹ So by a roar of voices war was declared on Philip. [6] Extravagant honours were conferred first upon Attalus and then upon the Rhodians as well. At this time occurs the first mention of the tribe which they called “Attalis,” to be added to the ten old tribes.² [7] The people of [p. 49]Rhodes, moreover, was presented with a golden crown, -³ the symbol of valour, and the Athenian citizenship was given the Rhodians, just as they had previously granted the same distinction to the Athenians. [8] After this Attalus rejoined his fleet at Aegina; the Rhodians went back from Aegina to Cia, thence to Rhodes by way of the islands, receiving into their alliance all of them but Andros, Paros and Cythnos, which were held by Macedonian garrisons. Attalus was kept idle for some time in Aegina, by sending messengers to Aetolia⁴ and waiting for ambassadors from there. [9] But he could not induce them to declare war, since they felt satisfaction at the composition —however [10] accomplished —of their difficulties with Philip;⁵ and Attalus and the Rhodians, although, if they had pressed their campaign against Philip, they might have won the fair fame of having liberated Greece, by permitting him to cross again to the Hellespont and to increase his [11] army by the occupation of strongholds in Thrace, protracted the war and left to the Romans the glory of conducting and finishing it.