“Abstraction allows man to see with his mind what he cannot see physically with his eyes, it enables the artist to perceive beyond the tangible, to extract the infinite out of the finite. It is the emancipation of the mind. It is an exploration into unknown areas.”
― A Gorky
There are many theoretical ideas behind abstract art. While some have taken the idea of 'art for art’s sake' (that art should be purely about the creation of beautiful effects), others have proposed art can or should be like music, in that just as music is patterns of sound, art’s effects should be created by pure patterns of form, colour and line. The idea, derived from the ancient Greek philosopher Plato, that the highest form of beauty lies not in the forms of the real world but in geometry, is also used in discussion of abstract art, as is the idea that abstract art, since it does not represent the material world, can be seen to represent the spiritual.