Zeno of Citium was a Hellenistic philosopher from Citium, Cyprus. Zeno was the founder of the Stoic school of philosophy, which he taught in Athens from about 300 BC. Based on the moral ideas of the Cynics, Stoicism laid great emphasis on goodness and peace of mind gained from living a life of virtue in accordance with nature. It proved very popular, and flourished as one of the major schools of philosophy from the Hellenistic period through to the Roman era, and enjoyed revivals in the Renaissance as Neostoicism and in the current era as Modern Stoicism.
Chrysippus of Soli was a Greco-Phoenician Stoic philosopher. He 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. A prolific writer, Chrysippus expanded the fundamental doctrines of Cleanthes' mentor Zeno of Citium, the founder and first head of the school, which earned him the title of the Second Founder of Stoicism.
In Greek mythology, Apate is the goddess and personification of deceit. Her mother is Nyx, the personification of the night. In Roman mythology her equivalent is Fraus, while her male counterpart is Dolos, a minor god of trickery, and her opposite number Aletheia, the goddess of truth.
Aulus Hirtius was consul of the Roman Republic in 43 BC and a writer on military subjects. He was killed during his consulship in battle against Mark Antony at the Battle of Mutina.
Fatalism is a family of related philosophical doctrines that stress the subjugation of all events or actions to fate or destiny, and is commonly associated with the consequent attitude of resignation in the face of future events which are thought to be inevitable.
The Lazy Argument or Idle Argument is an attempt to undermine the philosophical doctrine of fatalism by demonstrating that, if everything that happens is determined by fate, it is futile to take any kind of action. Its basic form is that of a complex constructive dilemma.
Panaetius of Rhodes was an ancient Greek Stoic philosopher. He was a pupil of Diogenes of Babylon and Antipater of Tarsus in Athens, before moving to Rome where he did much to introduce Stoic doctrines to the city, thanks to the patronage of Scipio Aemilianus. After the death of Scipio in 129 BC, he returned to the Stoic school in Athens, and was its last undisputed scholarch. With Panaetius, Stoicism became much more eclectic. His most famous work was his On Duties, the principal source used by Cicero in his own work of the same name.
Zeno of Sidon was a Greek Epicurean philosopher from the Seleucid city of Sidon. His writings have not survived, but there are some epitomes of his lectures preserved among the writings of his pupil Philodemus.
Clitomachus or Cleitomachus was a Greek philosopher, originally from Carthage, who came to Athens in 163/2 BC and studied philosophy under Carneades. He became head of the Academy around 127/6 BC. He was an Academic skeptic like his master. Nothing survives of his writings, which were dedicated to making known the views of Carneades, but Cicero made use of them for some of his works.
De Divinatione is a philosophical dialogue about ancient Roman divination written in 44 BC by Marcus Tullius Cicero.
Diodorus Cronus was a Greek philosopher and dialectician connected to the Megarian school. He was most notable for logic innovations, including his master argument formulated in response to Aristotle's discussion of future contingents.
Diogenes of Babylon was a Stoic philosopher. He was the head of the Stoic school in Athens, and he was one of three philosophers sent to Rome in 155 BC. He wrote many works, but none of his writings survived, except as quotations by later writers.
De Natura Deorum is a philosophical dialogue by Roman Academic Skeptic philosopher Cicero written in 45 BC. It is laid out in three books that discuss the theological views of the Hellenistic philosophies of Epicureanism, Stoicism, and Academic Skepticism.
Antipater of Tarsus was a Stoic philosopher. He was the pupil and successor of Diogenes of Babylon as leader of the Stoic school, and was the teacher of Panaetius. He wrote works on the gods and on divination, and in ethics he took a higher moral ground than that of his teacher Diogenes.
Katalepsis is a term in Stoic philosophy for a concept roughly equivalent to modern comprehension. To the Stoic philosophers, katalepsis was an important premise regarding one's state of mind as it relates to grasping fundamental philosophical concepts.
Quintus Lucilius Balbus was a Stoic philosopher and a pupil of Panaetius.
Stoicism is one of the four major schools of thought established in the Hellenistic period. It was founded in the ancient Agora of Athens by Zeno of Citium around 300 BC. The Stoics believed that the practice of virtue is enough to achieve eudaimonia: a well-lived, flourishing life. The Stoics identified the path to achieving it with a life spent practicing certain virtues in everyday life such as courage or temperance and living in accordance with nature.
The writings of Marcus Tullius Cicero constitute one of the most renowned collections of historical and philosophical work in all of classical antiquity. Cicero was a Roman politician, lawyer, orator, political theorist, philosopher, and constitutionalist who lived during the years of 106–43 BC. He held the positions of Roman senator and Roman consul (chief-magistrate) and played a critical role in the transformation of the Roman Republic into the Roman Empire. He was extant during the rule of prominent Roman politicians, such as those of Julius Caesar, Pompey, and Marc Antony. Cicero is widely considered one of Rome's greatest orators and prose stylists.
Free will in antiquity is a philosophical and theological concept. Free will in antiquity was not discussed in the same terms as used in the modern free will debates, but historians of the problem have speculated who exactly was first to take positions as determinist, libertarian, and compatibilist in antiquity. There is wide agreement that these views were essentially fully formed over 2000 years ago. Candidates for the first thinkers to form these views, as well as the idea of a non-physical "agent-causal" libertarianism, include Democritus, Aristotle, Epicurus, Chrysippus, and Carneades.
The Paradoxa Stoicorum is a work by the academic skeptic philosopher Cicero in which he attempts to explain six famous Stoic sayings that appear to go against common understanding: (1) virtue is the sole good; (2) virtue is the sole requisite for happiness; (3) all good deeds are equally virtuous and all bad deeds equally vicious; (4) all fools are mad; (5) only the wise are free, whereas all fools are enslaved; and (6) only the wise are rich.
