1. Chrysippus of Soli was a Greek Stoic philosopher.

1. Chrysippus of Soli was a Greek Stoic philosopher.
Chrysippus was a native of Soli, Cilicia, but moved to Athens as a young man, where he became a pupil of the Stoic philosopher Cleanthes.
When Cleanthes died, around 230 BC, Chrysippus became the third head of the Stoic school.
Chrysippus excelled in logic, the theory of knowledge, ethics, and physics.
Chrysippus created an original system of propositional logic in order to better understand the workings of the universe and role of humanity within it.
Chrysippus adhered to a fatalistic view of fate, but nevertheless sought a role for personal agency in thought and action.
Chrysippus initiated the success of Stoicism as one of the most influential philosophical movements for centuries in the Greek and Roman world.
The linguistic orientation of Chrysippus' work made it difficult for its students even within the Stoic school.
Presumably of Phoenician descent, Chrysippus was the son of Apollonius of Tarsus, and he was born at Soli, Cilicia.
Chrysippus was slight in stature, and is reputed to have trained as a long-distance runner.
Chrysippus moved to Athens, where he became the disciple of Cleanthes, who was then the head of the Stoic school.
Chrysippus is believed to have attended the courses of Arcesilaus and his successor Lacydes, in the Platonic Academy.
Chrysippus threw himself eagerly into the study of the Stoic system.
Chrysippus is said to rarely have gone without writing 500 lines a day and he composed more than 705 works.
Chrysippus was considered diffuse and obscure in his utterances and careless in his style, but his abilities were highly regarded, and he came to be seen as a preeminent authority for the school.
Chrysippus died during the 143rd Olympiad at the age of 73.
Chrysippus was succeeded as head of the Stoic school by his pupil Zeno of Tarsus.
Chrysippus had a long and successful career of resisting the attacks of the Academy and hoped not simply to defend Stoicism against the assaults of the past, but against all possible attack in the future.
Chrysippus took the doctrines of Zeno and Cleanthes and crystallized them into what became the definitive system of Stoicism.
Chrysippus elaborated the physical doctrines of the Stoics and their theory of knowledge and he created much of their formal logic.
In short, Chrysippus made the Stoic system what it was.
Chrysippus wrote much on the subject of logic and created a system of propositional logic.
Chrysippus enumerated five kinds of molecular propositions according to the connective used:.
Chrysippus developed a syllogistic or system of deduction in which he made use of five types of basic arguments or argument forms called indemonstrable syllogisms, which played the role of axioms, and four inference rules, called themata by means of which complex syllogisms could be reduced to these axioms.
Chrysippus analyzed speech and the handling of names and terms.
Chrysippus came to be renowned as one of the foremost logicians of ancient Greece.
Chrysippus preferred to regard it as an alteration or change in the soul; that is, the soul receives a modification from every external object that acts upon it, just as the air receives countless strokes when many people are speaking at once.
Chrysippus insisted on the organic unity of the universe, as well as the correlation and mutual interdependence of all of its parts.
Chrysippus argued for the existence of fate based on divination, which he thought there was good evidence for.
Chrysippus sought to prove the existence of God, making use of a teleological argument:.
Chrysippus interpreted the gods of traditional Greek religion by viewing them as different aspects of the one reality.
Chrysippus regarded bodies, surfaces, lines, places, the void and time as all being infinitely divisible.
Chrysippus determined one of the principal features of the infinite set: since a man and a finger have an infinite number of parts as do the universe and a man, it cannot be said that a man has more parts than his finger, nor that the universe has more parts than a man.
The reply of Chrysippus was that the surfaces are both equal and unequal.
Chrysippus was notable for claiming that "one" is a number.
Chrysippus laid the greatest stress on the worth and dignity of the individual, and on the power of will.
Chrysippus accepted that it was normal in ordinary usage to refer to the preferred indifferent things as "good", but the wise person, said Chrysippus, uses such things without requiring them.
Chrysippus wrote a whole book, On Passions, concerning the therapy of the emotions.