Explain Plato's Theory of Forms

Plato says that in the material world, the objects that exist, like cats, will all die. What makes a cat a cat, however is the way in which it corresponds to the Form of a cat. Plato said that the objects in the material world must exist somewhere and that place is the World of Forms. A Form is not a physical thing, it is a concept and therefore it is unchanging and eternal. The reason that Forms do not die, unlike the objects of this world, is because it is a concept and can only be accessed intellectually.

Plato states that our soul (as represented by the fire in the analogy of the cave) which pre-existed in the World of Forms allows us to see a distorted version of the Forms in the physical world (just as the fire in the cave allows the prisoners to see shadows of the objects being carried on the walkway). Even though we have never personally seen the Form of the cat or dog we can still recognise the cats and dogs in the World of Particulars because we can know these ideas intuitively inside ourselves through anamnesis due to the fact that out soul pre-existed in the World of Forms and observed the Forms before being incarnated in a body. However, in the body the memories of the soul are only dim. Plato’s evidence for this claim was the fact that people can have a basic understanding of something like truth, justice or beauty without being taught it. Our souls are imprisoned in our bodies until it returns on our death to the World of Forms.

Plato says the highest Form is the Form of Good (represented by the sun in the analogy of the cave) is the highest and most important Form. He says that knowing the Forms leads to discovering the Form of Good upon which they depend (like everything is dependant on the sun in the analogy of the cave). In the World of Particulars we can label things as good, but this does not tell us all that goodness is – only the Form of Good is actually good.

Plato used the analogy of the sun to help us understand the Form of Good better. In order to see we need an object to be seen, the eyes and light. It is the sun that provides light and this can be applied to the mind – the World of Forms can be seen by the mind or soul’s eye through the medium of knowledge provided by the Form of the Good which why he argues that the Form of the Good enables us to understand things. Plato says that sight requires light to see clearly and light symbolises the Form of the Good, what he is trying to say is that without the knowledge of the Form of the Good one does not see clearly, the same as trying to see in the dark. His idea is teleological in that everything aims towards the Form of the Good.

In conclusion, Plato’s theory of Forms is the theory that the world we live in is a world of illusions and opinions and there exists a real world, called the World of Forms which can be accessed intellectually. It contains the original copies of the objects of the world we live in such as trees and it is called the Form of a tree. The reason he came up with the theory is because there is no definite answer of things in the World of Particulars, for example, beauty – there is no definite answer to what beauty is but in the World of Forms there is only one Form of Beauty and that is the only things that is actually Beautiful.