"To arrive at the simplest truth, as Newton knew and practiced, requires years of contemplation. Not activity Not reasoning. Not calculating. Not busy behaviour of any kind. Not reading. Not talking. Not making an effort. Not thinking. Simply bearing in mind what it is one needs to know."

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The dialectical critique of positivist habits of mind ... is interested only in behaviour which is 'important' to the actor; that is, behaviour which is emotionally charged to the degree that it is either frequently recalled, reflected upon, or day-dreamed about. ... That science which is less discriminating in the behaviour it chooses to investigate gains clarity and distinctiveness at the cost of confining itself to the trivial.

— John Carroll