CLAS 196/PHIL196
Stoicism


The Final End

Diogenes Laertius 7.87-88 (LIII in our website numbering)
On which account Zeno was the first writer who, in his treatise on the Nature of Man, said, that the chief good was confessedly to live according to nature; which is to live according to virtue, for nature leads us to this point. And in like manner Cleanthes speaks in his treatise on Pleasure, and so do Posidonius and Hecaton in their essays on Ends as the Chief Good. And again, to live according to virtue is the same thing as living according to one’s experience of those things which happen by nature; as Chrysippus explains it in the first book of his treatise on the Chief Good. For our individual natures are all parts of universal nature; on which account the chief good is to live in a manner corresponding to nature, and that means corresponding to one‘s own nature and to universal nature; doing none of those things which the common law of mankind is in the habit of forbidding, and that common law is identical with that right reason which pervades everything, being the same with Jupiter, who is the regulator and chief manager of all existing things.

Again, this very thing is the virtue of the happy man and the perfect happiness of life when everything is done according to a harmony with the genius of each individual with reference to the will of the universal governor and manager of all things. Diogenes, accordingly, says expressly that the chief good is to act according to sound reason in our selection of things according to our nature. And Archidemus defines it to be living in the discharge of all becoming duties. Chrysippus again understands that the nature, in a manner corresponding to which we ought to live, is both the common nature, and also human nature in particular; but Cleanthes will not admit of any other nature than the common one alone, as that to which people ought to live in a manner corresponding; and re- [293>] pudiates all mention of a particular nature. And he asserts that virtue is a disposition of the mind always consistent and always harmonious; that one ought to seek it out for its own sake, without being influenced by fear or hope by any external influence. Moreover, that it is in it that happiness consists, as producing in the soul the harmony of a life always consistent with itself; and that if a rational animal goes the wrong way, it is because it allows itself to be misled by the deceitful appearances of exterior things, or perhaps by the instigation of those who surround it; for nature herself never gives us any but good inclinations.

Stobaeus 2.75-76
Zeno represented the end as: "living in agreement". This is living in accordance with one concordant reason, since those who live in conflict are unhappy. His successors expressed this in a more expanded form, "living in agreement with nature", since they took Zeno's statement to be an incomplete predicate. Cleanthes, his first successor, added "with nature", and represented it as follows: "the end is living in agreement with nature". Chrysippus wanted to make this clearer and expressed it thus: "living in accordance with experience of what happens by nature".

Cicero, de Finibus (on Ends) 3.31
We are left with the conclusion that the final good is a life in which one applies knowledge of those things that happen by nature, selecting those in accordance with nature and rejecting those contrary to nature, that is, a life in agreement and consistent with nature.