“ 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. ”
- Leonardo da Vinci- Copy
- 2.1K
“ Just as iron rusts from disuse, even so does inaction spoil the intellect. ”
- Leonardo da Vinci- Copy
- 160
“ 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. ”
- Sir B. Brodie- Copy
- 68
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