This book consists of 2 titles, which are:

Heraclitus: Heraclitus of Ephesus, a pre-Socratic philosopher who lived in the 6th century BCE, remains one of the most enigmatic figures in the history of Western thought. Known for his cryptic sayings and profound insights into the nature of reality, Heraclitus' ideas have had a lasting influence on philosophy, science, and the arts. His philosophy, often centered around the concept of change, emphasized that everything in existence is in a constant state of flux. This view is encapsulated in one of his most famous quotes: "You cannot step into the same river twice." For Heraclitus, the essence of life and the universe lies in this unceasing transformation, where stability and change are not opposing forces but interconnected aspects of existence.

Pythagoras: As a philosopher and mathematician, Pythagoras is perhaps best known for the Pythagorean Theorem, a fundamental principle in geometry that has influenced the study of mathematics for over two millennia. However, his impact extends far beyond the confines of geometry. Pythagoras is often credited with transforming numbers from mere tools of calculation into a system that mirrors the structure and harmony of the universe. For him, numbers were not just abstract symbols but the very essence of reality, governing everything from the motions of the stars to the patterns in music. His belief in the mystical and metaphysical significance of numbers laid the groundwork for later developments in philosophy, particularly the idea that the world is not a chaotic, random place but a cosmos governed by rational and harmonious principles.