When all beliefs are challenged together, the just and necessary ones have a chance to step forward and re-establish themselves alone.
The brute necessity of believing something so long as life lasts does not justify any belief in particular.
By "essence" I understand a universal, of any degree of complexity and definition, which may be given immediately, whether to sense or to thought.... This object of pure sense or pure thought, with no belief superadded, an object inwardly complete and individual, but without external relations or physical status, is what I call an essence.
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