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FEEDING THE MIND
those five minutes, and to turn it entirely to other subjects. It is astonishing what an amount of impetus and elasticity the mind recovers during those short periods of rest.
And then, as to the mastication of the food, the mental process answering to this is simply thinking over what we read. This is a very much greater exertion of mind than the mere passive taking in the contents of our Author. So much greater an exertion is it, that, as Coleridge says, the mind often 'angrily refuses' to put itself to such trouble—so much greater, that we are far too apt to neglect it altogether, and go on pouring in fresh food on the top of the undigested masses already lying there,
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