Why is heraclitus famous?

Heraclitus is famous for his philosophy that emphasizes the constant change and flux of the universe, encapsulated in his assertion that "you cannot step into the same river twice." He introduced the concept of logos, a principle of order and knowledge, and believed that conflict and opposites are essential for harmony. His ideas laid the groundwork for later philosophical thought, particularly in metaphysics and the nature of reality. Additionally, his enigmatic style and paradoxical statements have intrigued scholars throughout history.