If we search in the writings of the Stoics which remain to us, all of which are unsystematically composed, for the ultimate ground of that irrefragible equanimity which is unceasingly demanded of us, we find no other than the knowledge that the course of the world is entirely independent of our will, and consequently, that the evil which befalls us is inevitable. If we have regulated our claims by a correct insight into this, then mourning, rejoicing, fearing, and hoping are follies of which we are no longer capable. Further, especially in the commentaries of Arrian, it is surreptitiously assumed that all that is ουκ εφ᾽ ἡμιν (_i.e._, does not depend upon us) is at once also ου προς ἡμας (_i.e._, does not concern us). Yet it remains true that all the good things of life are in the power of chance, and therefore whenever it makes use of this power to deprive us of them, we are unhappy if we have placed our happiness in them. From this unworthy fate we are, in the opinion of the Stoics, delivered by the right use of reason, by virtue of which we regard all these things, never as ours, but only as lent to us for an indefinite time; only thus can we never really lose them. Therefore Seneca says (Ep. 98): “_Si, quid humanarum rerum varietas possit, cogitaverit, ante quam senserit_,” and Diogenes Laertius (vii. 1. 87): “Ισον δε εστι το κατ᾽ αρετην ζῃν τῳ κατ᾽ εμπειριαν των φυσει συμβαινοντων ζῃν.” (_Secundum virtutem vivere idem est, quod secundum experientiam eorum, quæ secundum naturam accidunt, vivere._) The passage in Arrian’s “Discourses of Epictetus,” B. iii., c. 24, 84-89, is particularly in point here; and especially, as a proof of what I have said in this reference in § 16 of the first volume, the passage: “Τουτο γαρ εστι το αιτιον τοις ανθροποις παντων των κακων το τας προληψεις τας κοινας μη δυνασθαι εφαρμοζειν τοις επι μερους,” Ibid. iv., 1. 42. (_Hæc enim causa est hominibus omnium malorum, quod anticipationes generales rebus singularibus accommodare non possunt._) Similarly the passage in “Marcus Aurelius” (iv. 29): “Ει ξενος κοσμου ὁ μη γνωριζων τα εν αυτῳ οντα, ουχ ἡττον ξενος και ο μη γνωριζων τα γιγνομενα;” that is: “If he is a stranger to the universe who does not know what is in it, no less is he a stranger who does not know how things go on in it.” Also Seneca’s eleventh chapter, “_De Tranquilitate Animi_,” is a complete proof of this view. The opinion of the Stoics amounts on the whole to this, that if a man has watched for a while the juggling illusion of happiness and then uses his reason, he must recognise both the rapid changes of the dice and the intrinsic worthlessness of the counters, and therefore must henceforth remain unmoved. Taken generally the Stoical point of view may be thus expressed: our suffering always arises from the want of agreement between our wishes and the course of the world. Therefore one of these two must be changed and adapted to the other. Since now the course of things is not in our power (ουκ εφ᾽ ἡμιν), we must direct our volitions and desires according to the course of things: for the will alone is εφ᾽ ἡμιν. This adaptation of volition to the course of the external world, thus to the nature of things, is very often understood under the ambiguous κατα φυσιν ζην. See the “Discourses of Epictetus,” ii. 17, 21, 22. Seneca also denotes this point of view (Ep. 119) when he says: “_Nihil interest, utrum non desideres, an habeas. Summa rei in utroque est eadem: non torqueberis._” Also Cicero (_Tusc._ iv. 26) by the words: “_Solum habere velle, summa dementia est._” Similarly Arrian (iv. 1. 175): “Ου γαρ εκπληρωσει των επιθυμουμενων ελευθερια παρασκευαζεται, αλλα ανασκευη της επιθυμιας.” (_Non enim explendis desideriis libertas comparatur, sed tollenda cupiditate._)