> 'Quart' must then be defined using some other metric. This other metric
> must then be defined. We go on like this, never actually finding out
> what exactly a gallon is except as it relates to these other things.
> Where does the floor end and my desk begin? If you had no definition for
> floor, and no definition for desk, they would be one.
Sense-data provides for perceptions. But perceptions are all we know of
sense-data. We can never know the actual nature of sense-data, so the
best we can come up with is a 'system of perceptial truth'.
I had more to say, but lost my train of thought. Bugger..