Pythagoras 

Pythagoras was an ancient Greek philosopher and mathematician who viewed numbers as the core of everything.
He believed that the universe was deeply connected to mathematics and spiritual understanding.
Pythagoras, who lived around 570 BC, was born on the island of Samos. From a young age, he showed curiosity and a hunger for knowledge. His father, a gem merchant, supported his education.
Pythagoras's early life was filled with interactions with local scholars, and he soon developed a passion for exploring new ideas.
To expand his knowledge, Pythagoras traveled extensively. His journey took him to Egypt, where he learned about geometry and witnessed the great pyramids. In Egypt, he studied sacred geometry and understood the connection between mathematics and spirituality.
He later traveled to Mesopotamia (modern-day Iraq), where he learned advanced mathematics and astronomy from the Babylonians. He was deeply inspired by the relationship between numbers and the stars. This learning journey led him to believe that numbers were the key to explaining the universe.
He also visited India, where he studied the Vedic scriptures and learned about meditation and spiritual concepts, such as reincarnation.
Pythagoras's most famous contribution to mathematics is the Pythagorean Theorem. This theorem states that in a right-angled triangle, the square of the hypotenuse (the longest side) is equal to the sum of the squares of the other two sides. This simple equation, A² + B² = C², became fundamental to geometry. Pythagoras saw this theorem not just as a math problem, but as a way to understand the deeper structure of the world.
However, Pythagoras was not just a mathematician. He was a philosopher who believed in the mystical power of numbers. He thought that numbers had meanings beyond calculations.
For example, he believed that the number 1 represented unity, 2 symbolized opposites (like day and night), and 3 represented harmony. His belief in the connection between numbers and the universe led him to propose the idea of "Harmony of the Spheres," which suggested that planets and stars create a kind of music as they move, a cosmic harmony that, although inaudible, reflects the order of the universe.
Pythagoras founded a school in Croton, Italy, around 530 BC. His school taught both mathematics and spiritual knowledge. His students, known as Pythagoreans, followed strict rules. They practiced vegetarianism because they believed in the sanctity of all life. Pythagoras also believed in the immortality of the soul. He taught that after death, the soul moves into a new body in a cycle of rebirths, a concept known as reincarnation. This belief in the soul's journey encouraged ethical and pure living among his followers.
The Pythagorean school functioned as a secret society, with students undergoing a long observation period before they were fully admitted. Pythagoras' teachings extended far beyond mathematics and included moral and spiritual guidance. His belief in the purity of the soul was reflected in the disciplined lifestyle his followers had to maintain.
The legacy of Pythagoras continues to influence both mathematics and philosophy. His idea that the universe can be understood through numbers and his blending of mathematics with spirituality set him apart from other thinkers of his time.
Today, Pythagoras is remembered not just for his famous theorem but for his broader philosophical ideas that combined science, spirituality, and ethics into a unified view of the world.