mutations; and no one of them is permanent, or immutable, or stable, or indivisible. Hence well considering these things, and also being persuaded, that if what is present and is imparted to us, is able to remain for the smallest portion of time, it is as much as we ought to expect; we shall then live in tranquillity and with hilarity, generously bearing whatever may befal us. Now, however, many previously conceiving in imagination, that all that is present with, and imparted to them by nature and fortune, is better than it is, and not thinking it to be such as it is in reality, but such as it is able to become when it has arrived at the summit of excellence, they burden the soul with many great, nefarious, and stupid evils, when they are suddenly deprived of [these evanescent goods]. And thus it happens to them that they lead a most bitter and miserable life. But this takes place in the loss of riches, or the death of friends or children, or in the privation of certain other things, which are conceived by them to be most honorable possessions. Afterwards, weeping and lamenting, they assert of themselves, that they alone are most unfortunate and miserable, not remembering that these things have happened, and even now happen, to many others; nor are they able to understand the life of those that are now in existence, and of those that have lived in former times, nor to see in what great calamities and waves of evils, many of the present time are, and of the past have been involved. Considering with ourselves therefore, that many having lost their property, have afterwards on account of this very loss been saved, since hereafter they might either have fallen into the hands of robbers, or into the power of a tyrant; that many also who have loved certain persons, and have been benevolently disposed towards them in the extreme, have afterwards greatly hated them;—considering all these things, which have been delivered to us by history, and likewise learning that many have been destroyed by their children, and by those that they have most dearly loved; and comparing our own life with that of those who have been more unhappy than we have been, and taking into account human casualties [in general] and not only such as happen to ourselves, we shall pass through life with greater tranquillity. For it is not lawful that he who is himself a man, should think the calamities of others easy to be borne, and not his own, since he sees that the whole of life is naturally exposed to many calamities. Those however, that weep and lament, besides not being able to recover what they have lost, or recal to life those that are dead, impel the soul to greater perturbations, in consequence of its being filled with much depravity. It is requisite therefore, that, being washed and purified, we should by all possible contrivances wipe away our inveterate stains by the reasonings of philosophy. But we shall accomplish this by adhering to