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might be called public ideas, common to other minds and to me, could do this. And such objects are not properly called 'ideas'—public or private; they are dead things and living persons; they exist whether I individually have sensations and ideas or not. In short, Reid could find nothing in Berkeley’s philosophical theory—as he interpreted it[1]—which afforded even probable ground for concluding that there were in existence other intelligent beings—fathers, brothers, friends, or fellow-citizens. 'I am left alone,' the only creature of God, in that forlorn state of egoism into which it was said some of the disciples of Descartes were brought by this same preliminary assumption of their master—a sufficient reductio ad absurdum of the favourite postulate which leads to it. To act upon it would argue insanity in the agent; it must therefore be empty verbal speculation. So Reid further argued.

But even this solitude is not the last issue of Reid’s bête noire. The system in which I have been educated, he said, not only leaves me absolutely alone; it extinguishes me, along with the external universe of things and persons; it is at last literally suicidal. It transforms persistent personal existence into a mere succession of unconnected sensations and ideas. If the magic circle of sensations and ideas, within a self that persists amidst perpetual changes, cannot be broken through, then even this supposed 'self' must be an illusion, and the word self must be meaningless. The personal pronoun 'I,' as well as the personal pronoun 'you,' are both alike unmeaning. The universe resolves at last, not merely into sensations that are all referable to myself, but into sensations without any self—into isolated sensations—which seem indeed to follow one another in

  1. I have elsewhere discussed the true meaning of Berkeley’s philosophy.