"Ancient Greek Philosopher-Scientists" delves into the groundbreaking inquiries of the Pre-Socratic philosophers, who were the first to seek rational explanations for natural phenomena, moving away from traditional religious interpretations. This collection presents the surviving fragments and testimonials about ten influential thinker-scientists, highlighting their foundational role in the development of philosophy and various sciences. Their quest for knowledge and understanding continues to resonate today, as it laid the groundwork for critical thinking and scientific inquiry.