The Theory of Forms, proposed by the philosopher Plato, suggests that non-material abstract forms, or ideas, represent the most accurate reality. According to this theory, the physical world is just a shadow or imitation of these ideal forms, which are perfect and unchanging. For example, the concept of "beauty" exists as a perfect form, while individual beautiful objects are merely imperfect representations of that form. In this framework, knowledge is gained through understanding these forms rather than through sensory experience. Plato believed that philosophers, through reason and intellect, could access these higher truths, leading to a deeper understanding of existence and reality.