The concept of object refers to anything that can be observed or acted upon by a subject, including both tangible entities and intangible phenomena. Philosophers have long debated its limits: Thomas Brown views sight as the only content of perception, whereas Josiah Royce focuses on the interaction between ideas and their counterparts, proposing that objects are chosen by the mind's purpose. George Edward Moore highlights the inextricable link between objects and subjects, contending that the world's reality depends on being perceived.
These differing viewpoints—ranging from Cartesian dualism's separation of mind and body to pragmatism's expansive inclusion of thoughts and convictions—underscore the object's dual nature as both a perceived entity and a formation shaped by awareness. The data indicate that objects are not exclusively material nor entirely abstract, but rather exist in a dynamic relationship with subjects, their characteristics, and the systems through which they are interpreted.