A habit is to him something which has a hold on him, something not easily thrown off even though judgment condemn it.
Habits reduce themselves to routine ways of acting, or degenerate into ways of action to which we are enslaved just in the degree in which intelligence is disconnected from them. Routine habits are unthinking habits
 John Dewey, Democracy and Education (1916). copy citation

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

Context

“Many a person would feel surprised to have his aptitude in his chosen profession called a habit, and would naturally think of his use of tobacco, liquor, or profane language as typical of the meaning of habit. A habit is to him something which has a hold on him, something not easily thrown off even though judgment condemn it. Habits reduce themselves to routine ways of acting, or degenerate into ways of action to which we are enslaved just in the degree in which intelligence is disconnected from them. Routine habits are unthinking habits: "bad" habits are habits so severed from reason that they are opposed to the conclusions of conscious deliberation and decision. As we have seen, the acquiring of habits is due to an original plasticity of our natures:” source