In his piece Meditation III, Rene Descartes makes the argument that he could be the origin of his ideas of physical objects. From there, the first thing we must consider is where our thoughts come from. There are three types of ideas: Those that originate from outside himself, those that are created by himself and his own mind, and those that he is born with. The ideas that he is born with are called innate ideas. Descartes believes that certain things, such as size/shape, number/quantity, and a duration of time are clear ideas. They are qualities of an object that an object possesses that are not subjective to the observer- they are clearly objective and do not change. Other things are more subjective- such as colour (changes according to