-(Knowledge is gained through experience. Primary qualities shape and motion and size. Secondary quality qualities of colour, ordor, smell and taste. Barkeley does not agree with the primary and secondary qualities. Barkeley is an idealist. Experiences are ideas. Ideas are things like the redness of a rose and the taste of honey. Ideas are images feelings or sense data that are present to the mind in vivid sensory or physiological experience. Matter is either one of two things. A collection of experiences such as texture or hardness or two something external to the mind without shape colour, taste or texture. These qualities are experienced within the mind. Reality is nothing more than our experiences. Everything that exists is exactly as it appears to us.)

-We are always mediated by our senses. If our sense is subjective we can’t say there is an objective reality. The world is created by multiple ideas. People say logic leads to sceptics. Barkeley says god is responsible for our perception of thoughts. The reason of stability is good. God will give me the categories, so we all have the same experiences. People who have personal experiences have no stability.

Hylas suggests/infers material subs crowd.

·      Physical things cannot have second and primary quality

-       Must have something else that causes sense

B- Ex Rose, take away smell and color.

·      You don’t know what you are talking about.

H- mere possibility of material objects.

Philous-  A1: look at sense ideas, they are constantly changing.

·       How can something prone to changing be a copy of something fixed and unchanging?

·      If there is a physical thing it has to be radically different that our senses perceiving it.

B- Final argument in 3rd dialogue.

·      Oxymoron: a contradiction in term.

-       There are many things in the world we can’t know because they are contradictory.

·      Concept of “matter” is oxymoron

-       More than one argument of matter.

Berkeley focuses one concept of matter.

·       Matter is inert, has to be moved/caused by something