110 Il-l to //-3
friendship-for then friendship will be on sale for profit; and [so too]
for [making money] from wisdom-for then wisdom will be put to work
for wages.
These are the criticisms of his work.
On Philosophy
Diogenes Laertius 7.38-41 [11-2]
38 .... It seemed a good idea to me to give a general account of all
the Stoic doctrines in the life of Zeno, since he was the founder of the
school. ... The common doctrines are as follows. Let a summary account
be given, as has been our custom in the case of the other philosophers.
- They say that philosophical theory [logos] is tripartite. For one
part of it concerns nature [i.e., physics], another concerns character [i.e.,
ethics] and another concerns rational discourse [i.e., logic]. Zeno of Citium
first gave this division in his book On Rational Discourse [logos] and so
did Chrysippus in book one of On Rational Discourse and book one of
his Physics and so did Apollodorus and Syllos in the first books of their
respective Introductions to Doctrine; and so too did Eudromus in his
Outline of Ethics; and so too did Diogenes of Babylon and Posidonius.
Apollodorus calls these parts 'topics'; Chrysippus and Eudromus call
them 'species'; others call them 'kinds'. - They compare philosophy to an animal, likening logic to the bones
and sinews, ethics to the fleshier parts and physics to the soul. Or again
they compare it to an egg. For the outer parts [the shell] are logic, the
next part [the white] is ethics and the inmost part [the yolk] is physics.
Or to a productive field, of which logic is the wall surrounding it, ethics
the fruit and physics is the land and trees. Or to a city which is beautifully
fortified and administered according to reason. And, as some Stoics say,
no part [of philosophy] is separate from another, but the parts are mixed.
And they taught [the three parts] mixed together. Others put logic first,
physics second and ethics third; Zeno (in his On Rational Discourse) and
Chrysippus and Archedemus and Eudromus are in this group. - Diogenes ofPtolemais, though, begins with ethics and Apollodorus
puts ethics second; Panaetius and Posidonius start with physics, as Phae-
nias the follower of Posidonius says in book one of his Posidonian Lectures.
But Cleanthes says there are six parts: dialectic, rhetoric, ethics, politics,
physics and theology. Others say that these are not the parts of[philosoph-
ical] discourse, but of philosophy itself, as for example, Zeno of Tarsus.
Some say that the logical part is divided into two sciences, rhetoric and