You will read in history, of many who have been in such apprehension, that the most part have taken the course to meet and anticipate conspiracies against them by punishment and revenge; but I find very few who have reaped any advantage by this proceeding; witness so many Roman emperors. Whoever finds himself in this danger, ought not to expect much either from his vigilance or power; for how hard a thing is it for a man to secure himself from an enemy, who lies concealed under the countenance of the most assiduous friend we have, and to discover and know the wills and inward thoughts of those who are in our personal service. ‘Tis to much purpose to have a guard of foreigners about one, and to be always fenced about with a pale of armed men; whosoever despises his own life, is always master of that of another man.--[Seneca, Ep., 4.]--And moreover, this continual suspicion, that makes a prince jealous of all the world, must of necessity be a strange torment to him. Therefore it was, that Dion, being advertised that Callippus watched all opportunities to take away his life, had never the heart to inquire more particularly into it, saying, that he had rather die than live in that misery, that he must continually stand upon his guard, not only against his enemies, but his friends also;--[Plutarch, Apothegms.]--which Alexander much more vividly and more roundly manifested in effect, when, having notice by a letter from Parmenio, that Philip, his most beloved physician, was by Darius’ money corrupted to poison him, at the same time he gave the letter to Philip to read, drank off the potion he had brought him. Was not this to express a resolution, that if his friends had a mind to despatch him out of the world, he was willing to give them opportunity to do it?