where do you draw the line?
From Longman Dictionary of Contemporary Englishwhere do you draw the line?where do you draw the line?spoken used to say it is impossible to decide at which point an acceptable limit has been reached Some say 50 is too old to have a baby, but where do you draw the line? → drawExamples from the Corpuswhere do you draw the line?• That obviously does not extend to the levels of awareness which human consciousness exhibits, but where do you draw the line?• Where do you draw the line?