This page has been proofread, but needs to be validated.

For the wayward sceptic, who regards it as no truer than any other view, it also has some utility: it accustoms him to discard the dogma which an introspective critic might be tempted to think self-evident, namely, that he himself lives and thinks. That he does so is true; but to establish that truth he must appeal to animal faith. If he is too proud for that, and simply stares at the datum, the last thing he will see is himself.