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Ideas of Chrysippus, by Text

[Greek, 280 - 207 BCE, Born at Soli in Cilicia. A pupil of Arcesilaus. Head of the Stoic school in Athens.]

240BCE works (fragments)
p.30 Stoic propositional logic is like chemistry - how atoms make molecules, not the innards of atoms
p.36 Modus ponens is one of five inference rules identified by the Stoics
p.36 Dogs show reason in decisions made by elimination
p.138 Chrysippus says action is the criterion for existence, which must be physical
p.171 Dion and Theon coexist, but Theon lacks a foot. If Dion loses a foot, he ousts Theon?
p.175 Change of matter doesn't destroy identity - in Dion and Theon change is a condition of identity
p.203 Every proposition is either true or false
p.221 Stoics categories are Substrate, Quality, Disposition, and Relation
p.228 Wisdom for one instant is as good as wisdom for eternity
p.291 Stoics teach that law is identical with right reason, which is the will of Zeus
p.296 Stoics say that beauty and goodness are equivalent and linked
p.297 Pleasure is not the good, because there are disgraceful pleasures
p.306 Stoics say justice is a part of nature, not just an invented principle
p.306 We don't have obligations to animals as they aren't like us
p.308 Stoics teach that God is a unity, variously known as Mind, or Fate, or Jupiter
p.312 Stoics say that God the creator is the perfection of all animals
p.497 People need nothing except corn and water
p.501 Diogenes masturbated in public, wishing he could get rid of hunger so easily
p.509 Chrysippus said the uncaused is non-existent
p.557 Chrysippus says nothing is blameworthy, as everything conforms with the best nature
fr 211 p.459 All virtue is good, but not always praised (as in not lusting after someone ugly)
fr 23 p.747 Justice can be preserved if pleasure is a good, but not if it is the goal
fr 326 p.433 The source of all justice is Zeus and the universal nature
fr 444 p.867 Stoics say earth, air, fire and water are the primary elements
fr 997 p.595 Destiny is only a predisposing cause, not a sufficient cause
fr139 p.675 Living happily is nothing but living virtuously