Heraclitus

Heraclitus of Ephesus was a pre-Socratic Greek philosopher, known for his enigmatic statements and profound insights into the nature of change and the universe. Often referred to as 'The Obscure' due to the complexity of his ideas, he famously asserted that 'everything flows' and emphasized the constant state of flux in life, encapsulated in his famous metaphor about the impossibility of stepping into the same river twice. His work laid the groundwork for later philosophical thought, influencing both the Stoics and modern existentialists, while his reflections on the nature of reality, change, and the interplay of opposites remain relevant in contemporary discussions about health, identity, and existence.