"Big-picture concepts and ideas that help us understand how the world works and how we might go about changing it."http://www.goodreads.com/quotes/9363325-big-picture-concepts-and-ideas-that-help-us-understand-how-the …
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"Big-picture concepts and ideas that help us understand how the world works and how we might go about changing it."http://www.goodreads.com/quotes/9363325-big-picture-concepts-and-ideas-that-help-us-understand-how-the …