Russell on the elusive knowledge of the Self

In ‘The Problems of Philosophy’ (1912), Bertrand Russell pays tribute to the French philosopher, René Descartes, for performing ‘ great service to philosophy’ by introducing a rational method of doubt in the search for truthful knowledge. He doesn’t identify any apparent difficulty in the Cartesian assumption that everything outside my own thoughts, feelings snd sensations, could be a mere fantasy. However, he brings his own realist interpretation to bear on the argument, when he comments that, despite the logical possibility ...