 Bertrand Russell Quotes 366 |
It is necessary to practice methodological doubt, like Descartes, in order to loosen the hold of mental habits; and it is necessary to cultivate logical imagination, in order to have a number of hypotheses at command, and not to be the slave of the one which common sense has rendered easy to imagine.These two processes, of doubting the familiar, and imagining the unfamiliar, are correlative, and form the chief part of the mental training required for a philosopher.
Source: Bertrand Russell: Our Knowledge of the External World, 1914, p.184
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