"Ancient Greek Philosopher-Scientists" explores the groundbreaking ideas of the Pre-Socratic philosophers, who laid the foundation for rational inquiry into natural phenomena, moving away from traditional religious explanations. This collection presents the surviving fragments and testimonials of ten influential thinkers, highlighting their enduring contributions to philosophy and science. Their quest for understanding the natural world resonates today, as we continue to seek rational explanations for the complexities of existence. By delving into the thoughts of these early philosopher-scientists, listeners can appreciate the origins of critical thinking and the pursuit of knowledge that shaped Western thought.