Iron rusts from disuse water loses its purity from stagnation and in cold weather becomes frozen even so does inaction sap the vigors of the mind.

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Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind

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Iron rusts from disuse, stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.

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Iron rusts from disuse; water loses its purity from stagnation and in cold weather becomes frozen; even so does inaction sap the vigors of the mind.

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Just as iron rusts from disuse, even so does inaction spoil the intellect.

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Iron rusts from disuse; water loses its purity from stagnation ... even so does inaction sap the vigour of the mind.

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The failure of the mind in old age is often less the results of natural decay, than of disuse. Ambition has ceased to operate; contentment bring indolence, and indolence decay of mental power, ennui, and sometimes death. Men have been known to die, literally speaking, of disease induced by intellectual vacancy.

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