A sage from ancient Greece, known as Pythagoras, is credited with a curious aphorism: "If you want to live a long life, keep a little old wine and an old friend." This pronouncement, emerging from a figure associated with the dawn of Western philosophy and mathematics, surfaces again amidst discussions of his enduring, somewhat mystical, influence.

Pythagoras, born around 570 BCE on the island of Samos, is linked to foundational concepts in geometry and a philosophical society that blended number theory with esoteric beliefs. His legacy, transmitted through various texts and interpretations, continues to inform diverse fields from mathematics to music theory.

Further accounts paint Pythagoras not just as a philosopher but as the progenitor of the world's first intentionally philosophical society. This group, often viewed through a lens of mysticism, engaged in the classification of numbers, distinguishing between even and odd, prime and composite, triangular, square, perfect, and irrational forms. The very theorem bearing his name remains a cornerstone of geometry.
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The philosophical lineage he supposedly established extends from Orpheus to Plato, embedding his ideas within a stream of profound thought. His influence is even recognized within certain modern spiritual orders, notably the 'Ecclesia Gnostica Catholica,' which lists him as a saint. This syncretism highlights the enduring, and often reinterpreted, reach of his teachings.

Beyond abstract numbers and philosophical societies, Pythagoras's curiosity is also tied to the physical world, particularly the realm of sound. Folklore suggests a chance encounter during a walk in ancient Greece led him to investigate the mathematical relationships underlying harmonious musical notes, thereby laying groundwork for modern music theory. His explorations into 'sacred geometry' also hint at a worldview where numbers and physical form were deeply intertwined.
Details of his life and death remain somewhat fluid, with scholarly consensus placing his demise around 495 BCE, possibly in Croton or Metapontum. Despite the passage of millennia, and the various layers of interpretation and legend, the figure of Pythagoras endures, a nexus of mathematics, mysticism, and enduring pronouncements on life and companionship.