It science involves an ...

It science involves an intelligent and persistent endeavor to revise current beliefs so as to weed out what is erroneous, to add to their accuracy, and, above all, to give them such shape that the dependencies of the various facts upon one another may be as obvious as possible.
It science involves an intelligent and persistent endeavor to revise current beliefs so as to weed out what is erroneous, to add to their accuracy, and, above all, to give them such shape that the dependencies of the various facts upon one another may be as obvious as possible.
 John Dewey

Quotes from the same author

Arriving at one point is the starting point to another.
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 John Dewey
The self is not something ready-made, but something in continuous formation through choice of action.
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 John Dewey
Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving.
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 John Dewey
Without some goals and some efforts to reach it, no man can live.
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 John Dewey
Every great advance in science has issued from a new audacity of the imagination.
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 John Dewey