Jean-Paul Sartre: Abstraction VS Concrete Reality

[g_uava]

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(2:22) "Sartre distinguishes an abstraction from concrete reality. An abstraction isolates a property from its manifestation in a concrete reality. An abstraction isolates a property that depends on something else in order for it to manifest through, like a color. A color is an abstraction because it always belongs to a being as a feature of that. Being the color blue is an abstraction because we have isolated it from the blue sky or her blue eyes or the blue house. 'Blue' needs something concrete to exist through and this follows with any abstraction. This helps us describe the nothingness that is our consciousness and ultimately...in order to identify anything, to differentiate anything, we need abstraction. We situate ourselves in reality by differentiating the objects from each other and from ourselves. This requires us to understand the properties that differentiate them."