One statement will emphasize what another slurs over. What a plurality of hypotheses does for the scientific investigator, a plurality of stated aims may do for the instructor.
 John Dewey, Democracy and Education (1916). copy citation

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Author John Dewey
Source Democracy and Education
Topic state aim
Date 1916
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/852/852-h/852-h.htm

Context

“Or, putting the matter in a slightly different way, one statement of an end may suggest certain questions and observations, and another statement another set of questions, calling for other observations. Then the more general ends we have, the better. One statement will emphasize what another slurs over. What a plurality of hypotheses does for the scientific investigator, a plurality of stated aims may do for the instructor. Summary. An aim denotes the result of any natural process brought to
consciousness and made a factor in determining present observation and choice of ways of acting. It signifies that an activity has become intelligent.” source