He turns the reader’s attention to the idea of material things and their properties. He starts by introducing different properties of material objects such as size, shape, position etc. However he also considers the fact that geometrical objects do not exist in the material world, yet they have properties. For example, triangles have distinct properties that make it a triangle. Triangles have an essence that doesn’t depend on Descartes’ own mind. He also denies that he was introduced to triangles by the senses, because he can think of other shapes that he has never seen and identify their properties as clearly as he can with those of triangles. The triangle exists as an idea in Descartes’ mind because it has a set of properties that he can clearly and distinctly
He turns the reader’s attention to the idea of material things and their properties. He starts by introducing different properties of material objects such as size, shape, position etc. However he also considers the fact that geometrical objects do not exist in the material world, yet they have properties. For example, triangles have distinct properties that make it a triangle. Triangles have an essence that doesn’t depend on Descartes’ own mind. He also denies that he was introduced to triangles by the senses, because he can think of other shapes that he has never seen and identify their properties as clearly as he can with those of triangles. The triangle exists as an idea in Descartes’ mind because it has a set of properties that he can clearly and distinctly