Final answer:
Ancient Greek philosophers, such as Plato, believed that reality might be perceived differently by each individual, emphasizing a separation of soul from the body to achieve pure knowledge. Plato's philosophy is built upon the theory of Forms, where learning is seen as recalling the perfect, eternal forms that exist beyond our sensory experiences.
Step-by-step explanation:
Ancient Greek philosophers speculated that reality might be a state of mind, and that the world we perceive is a unique experience for every person. They pursued knowledge through reasoning and logic. Plato's philosophy places a strong emphasis on the realm of Forms and ideas, suggesting a dualistic view of reality where physical objects are mere reflections of their perfect Forms.
In particular, Plato theorized about the separation of the soul from the body, a concept reflected in his dialogues such as Phaedo. He posited that the soul, when free from the body, can gain pure knowledge by contemplating the Forms. This line of thinking extends to his belief that before humans are born, their souls exist in a realm of perfect Forms, and that learning is the recollection of these Forms.
Moreover, Plato's vision indicates that philosophers aim to become like God (homoiosis theou), suggesting that philosophy was more than intellectual exercise; it was a way of life aiming towards an elevated state of understanding.