If you were to righteously proclaim that classical logic is self-evident, you would simply betray your unquestioned belief in it. Indeed, any attempt to logically prove the validity of logic would just make the circularity of the whole thing rather painfully explicit, wouldn’t it? The very same rationale applies to your classical physics. The only reason classical physics appears to be more grounded by external references is that it flows largely from the cognitive category of perception, as opposed to abstract thought alone. Yet, perception is just as mental as abstract thought.
