Pherecydes of Syros is one of the most enigmatic figures of early Greek philosophy and the tutor of the Greek philosopher Pythagoras. Often overshadowed by his famous pupil, Pherecydes was a thinker whose ideas bridged the mythological worldview of early Greece with the rational inquiry that later defined Greek philosophy.

His contributions to cosmology, theology and metaphysics laid the foundation for the teachings of Pythagoras and subsequent philosophical traditions.

Pherecydes of Syros: The philosopher who shaped Pythagoras

Born on the island of Syros in the 6th century BCE, Pherecydes was regarded as a sage with deep insight into religious and philosophical thought. His reputation extended beyond Greece. He traveled to Egypt and Mesopotamia. He received knowledge from the religious and mystical traditions of these ancient civilizations. The Neoplatonist philosopher Iamblichus even includes him among the Seven Sages of Greece , though this attribution remains debated.

Diogenes Laertius the Greek doxographer, in his work Lives of Eminent Philosophers, mentions that Pherecydes was one of the first Greek thinkers to introduce a cosmology that combined mythology with reason. The Roman philosopher Cicero acknowledges Pherecydes as one of the early Greek philosophers who speculated on the nature of the soul.

Teachings and philosophy

Pherecydes’ most well-known work, “Pentemychos” (“The Five Recesses”), was a complex cosmological treatise. It sought to explain the formation of the universe. Unlike the mythological explanations of his predecessors, his account combined divine principles with rational speculation. He proposed that the universe emerged from three eternal, preexisting entities: Zas (Zeus), Chronos (Time) and Chthonia (Earth/Gaia). These principles interacted to give structure to the cosmos, with Chronos weaving the primordial substance into an ordered reality.

The Neoplatonist philosopher Hermias of Alexandria , in his commentary on Plato’s Phaedrus, refers to Pherecydes’ cosmological ideas as a significant departure from traditional Hesiodic and Homeric accounts. The Greek philosopher Aristotle, in Metaphysics, alludes to Pherecydes as a precursor to metaphysical inquiry, distinguishing him from purely mythological storytellers.

One of Pherecydes’ most profound contributions was his belief in the immortality of the soul. He argued that the soul is not only eternal but also undergoes a process of purification and rebirth. This idea strongly agreed with Orphic traditions. It became a cornerstone of Pythagorean thought, influencing later philosophical inquiries into the nature of existence and the afterlife. Cicero references Pherecydes’ assertion of an eternal soul, indicating its impact on later philosophical schools.

Additionally, Pherecydes was known for integrating mystical symbols into his teachings. He treated numbers and geometric patterns as representations of divine harmony. His work contained esoteric elements that hinted at the sacred significance of numerical relationships. This played a role in shaping the numerological and geometric focus of Pythagoreanism. Iamblichus, in his work On the Pythagorean Life, explicitly credits Pherecydes with having an influence on Pythagoras’ ideas about sacred numbers and their cosmic significance.

Influence on Pythagoras

Pythagoras, who studied under Pherecydes, absorbed many of his teacher’s mystical and philosophical insights. He built upon them to form a more systematic doctrine. Pherecydes’ belief in the afterlife of the soul deeply influenced the Pythagorean concept of reincarnation , where the soul is seen as undergoing a cycle of rebirth and spiritual evolution. The idea of a structured cosmos governed by divine principles found a more concrete expression in Pythagoras’ mathematical and musical interpretations of the universe.

The Neoplatonist philosopher Porphyry, in his work Life of Pythagoras, describes how Pherecydes initiated Pythagoras into spiritual and mystical teachings. According to Diogenes Laertius, Pherecydes directly transmitted his knowledge to Pythagoras, shaping the later’s worldview.

The sacred nature of numbers, an idea hinted at in Pherecydes’ teachings, was expanded by Pythagoras into a fully-fledged mathematical philosophy. Pherecydes suggested that divine forces structured the cosmos. Pythagoras systematized this belief by asserting that numerical ratios and geometric patterns were the fundamental components of reality.

Legacy of Pherecydes

Although Pherecydes did not establish a formal school, his ideas profoundly influenced the development of Western philosophy. His fusion of myth and reason, his speculative cosmology, and his emphasis on divine order foreshadowed many of the central tenets of later philosophical systems. His ideas resonated through the Orphic and Pythagorean traditions. He influenced thinkers such as the Greek philosopher Plato and the Neoplatonists. The latter continued to explore the nature of the soul, time and cosmic structure.

Despite the loss of most of his writings, Pherecydes’ influence persists in fragments and in the testimonies of later philosophers. His teachings not only shaped Pythagoras but also contributed to the broader intellectual movement that sought to uncover the hidden order of the universe.