...where to draw the line as we descend the scale of phylogenetic 22. Hume writes: "For my part, when 1 enter most intimately into what I call myself, I always...or shade, love or hatred, pain or pleasure. I never catch myself at any time without a perception, and never can observe any thing but the perception"...

...argues that we cannot have any idea of our self as contrasted to our particular perceptions, because "when I enter most intimately into what I call myself,...light or shade, love or hatred, pain or pleasure," and "can never catch myself 'at any time without a perception" (165).-' Because I have perceptions...