For the rest of us, who coasted through high school and college, 2-3 months of intensive quantitative study is the only thing we can do to fill in our knowledge gaps and to reinforce the little we actually covered in high school and college. Native language ability is all some of us have as a leg up.
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Each moment of time ought to be put to proper use, either in business, in improving the mind, in the innocent and necessary relaxations and entertainments of life, or in the care of the moral and religious part of our nature.
-William Andrus Alcott