...there is no underlying structure that ties these together as a stable, continuing self. Hume writes, "For my part, when I enter most intimately into what...always stumble on some particular perception or other. ... I never catch myself without a perception, and never can observe anything but the perception."152...

...endowed with a perfect simplicity.' And, 'The only existence, of which we are certain, are perceptions. When I enter most intimately into what I call myself,...always stumble on some particular perception or other. — I never can catch myself at any time without a perception, and never can observe any thing but...