John Dewey Quotes
It requires troublesome work to undertake the alteration of old beliefs.
Citations
Dewey, John. How We Think. D. C. Heath & Co., 1910, p. 149.
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John Dewey was an American philosopher, psychologist, and educational reformer whose ideas have been influential in education and social reform. He was one of the most prominent American scholars in the first half of the twentieth century.