You lack the understanding of what is fact, and what is theory ... and what is subjective opinion.<quoted text>
I would and...,
In this case, that roses release certain chemicals....But this is not a simple fact, it is a compounded fact. It would be better to say a rose smells good, and not the chemicals released smell good.
When we have a compound fact, one reduces a fact to its simplist form, in this case we are speaking of the essence of the rose, which is observed through the senses.
And also we have a remembrance(opinion) of a rose, which also, changes in time. Each time one remembers, the memory changes. But this did not change when the rose was first smelled.
A fact doesn't change. Accumulating and remembering a fact does change in time....
I can't stand the smell of roses, they make me ill, and dizzy. I have a sever pollen allergy, so floral scents have that effect on me. So to me, and others with the same allergic reaction to pollen that have lived on farms and in suburban landfills (pet name for them), the scent of flowers, all flowers, will make us want to vomit. "Good" and "bad" are always, completely, subjective terms, never are they facts.
Now, the scent of the flowers actually is a chemical reaction, congrats, you got that part right, but that is not a "compound fact," it's simply a fact. It's a fact because it's always true, regardless of the circumstances, all scent is chemical reactions, our noses process this into information that we call "scent," this information then triggers a series of neurons, firing through the brain, which are more chemical reactions, producing a response to them. That does not make the scent a "compound fact" though, it's still just a fact, nor does it make the subjective response any less or more of a fact, because the subjective response is still subjective in all cases.