Berkeley on immediate perception: once more unto the breach.
I have previously argued that within an argument to show that we
cannot perceive the causes of our sensations, Berkeley's Philonous
conflates a psychological and an epistemic sense of 'immediately
perceive,' and uses the principle of perceptual immediacy (PPI),
that whatever is perceived by the senses is immediately perceived.
George Pappas has objected that Berkeley does not operate with either of
these concepts of immediate perception, and does not subscribe to (PPI).
But I show that Berkeley's argumentative strategy requires him to
use these two concepts, and that the concept of immediate perception
Pappas attributes to Berkeley would weaken this strategy. I also defend
attributing to Berkeley a slightly modified version of (PPI), on which
it both serves his strategy and allows sense perception to incorporate
what he calls 'suggestion.'