George Berekely

In the "Principles of Human Knowledge," George Berkeley argues that material objects are nothing more than images within the mind. This idealism suggests that no physical non-thinking entities are real. The only reality of the objects is the image within the mind of the perceiver of the objects. For instance, objects are perceived by the senses. We then perceive or interpret our own ideas or sensations. Thus, the ideas have more reality to us than does the objects that we supposedly perceive. Next, Berkeley defines the term "existence." For a body to exist, one must perceive it or have the potential to perceive it. Yet, everything that we perceive or have the potential to perceive is ideas. Thus, to say that a body exists is to say that you merely had an idea of that body. An objection to this argument is that one cannot have an idea of something without perceiving the real object. To retort this statement, Berkeley suggests that we cannot distinguish the sensible objects form the perc...