Gemistus Pletho

Gemistus Pletho was a Greek philosopher who lived in the 1400s. He thought that philosophy could be used to help people understand the natural world and make better decisions in their lives. He wrote books about logic, mathematics, and other topics. He argued that there was one ultimate truth, which he called the "ancient wisdom," and that this ancient wisdom could be seen in the practices of the past civilizations. He believed that by studying the past we could learn valuable knowledge and use it to make better choices in the present.