III. But observe attentively these very people, and you will find, that although they behave with this audacity, they at the very time they are doing it, endeavour to conceal other vices they are infected with, and also to make ostentation of virtues which they do not possess. They will own they are incontinent, prodigals, ambitious, and audacious; but they blazon their gratitude to their benefactors, their steadiness in their friendships, and their fidelity to their promises. It is certain, that the vice of ingratitude is one of the most common and most vulgarised in all the world; but with all this, you will not find any man who does not take pains to justify himself on this head; and I say the same of lying, of perfidy, and of other vices. It follows then, that upon a critical enquiry, you will not find a vicious man who is not a hypocrite. We should not suppose that open and avowed profligates, or debauchees, have no other blemishes, than such as shew themselves outwardly. There is no virtue such a man would not trample upon, if it was an impediment to his pursuits, nor an opposite vice to that virtue, which he would not employ as an instrument, to gratify his ruling passion. Do you think a very lewd man, for all the boastings of his innocence in matters of justice, and in points of _meum_ and _tuum_ honesty, would not, if he found himself without money of his own, make use of that of another person which was confided to his keeping, to purchase the enjoyment of his favourite object? or that the ardently ambitious man, for all the vociferations of his gratitude, would not turn his back on his benefactor, whenever this baseness would be a means of recommending him to the good graces of one, who could advance him to a higher degree of preferment, than it was in the power of his old friend to procure for him? IV. So that it is very rare to find a perverse person, who, over and above those glaring vices which manifest themselves so palpably, is not tainted with others, which he affects to hide; and in case there do not predominate in him other passions besides those, which on account of their vehemence are so very conspicuous, these of themselves are sufficient to betray him into faults, which arise from, and are the offspring of other distinct passions, when the committing those faults is indispensably necessary for attaining the objects or purposes of the ruling passion. Alexander in his natural disposition, was certainly not a cruel man, notwithstanding which, he was guilty of cruel actions; for such were the putting to death his friend Clytus, and the philosopher Calisthenes. His predominant passions were vain-glory and pride. Clytus fell a victim to the first, for having preferred the actions of Alexander’s father Philip to his; and Calisthenes fell a victim to the last, for having deterred people from idolizing Alexander as the son of Jupiter.