" We start at a promising job, only to be stymied in promotions over and over—yet we cling to the notion that the job is great. We embark on a promising relationship, only to find we have less and less in common with our partner—yet we forge ahead, refusing to admit that what seemed so right is now wrong. Sometimes, the most difficult thing of all is to stop playing. All too often, we stay in a hand long after we should have gotten out. "

― Maria Konnikova , The Biggest Bluff: How I Learned to Pay Attention, Master Myself, and Win