Hence the word "enough
." Enough is one thing in horseshoes and another in space-shuttle design. For all its inexactness, it's a useful word. Useful enough that we continue to use it.
One could argue that you don't have "ideas" and "sensations" but rather something that you symbolize with those words. To say you have ideas is an abstraction. Also to say you are a "person" is an abstraction, an idea. Hume tackled this, dissolved the self into associated ideas. But Hume had trouble with this, as it is a complicated (and eventually boring) issue. At some point he had enough
of it, and poured himself some gin.
Still, I liked his persuasions enough to reference them. I admit freely that we are playing a game of persuasion. And its often ourselves we persuade, for the mind is a complex organism. And all of this is abstractions and metaphors, like the rest of philosophy, which is here and there true enough
We are all in the fog of language, some of us more aware of it.
You end on the word "enough." "Enough" was the keyword of my last post, and "enough" is a flexible enough
word for all those situations you mentioned.