So much amazing food for thought in this book. During the week I read it, I think I mentioned it to nearly every friend I e-mailed or hung out with. 
 "Introversion--along with its cousins sensitivity, seriousness, and shyness--is now a second-class personality trait, somewhere between a disappointment and a pathology." 
 As Cain goes on to explain, it shouldn't be. There are facets of introversion that can be a great benefit to creativity and productivity, and bring dimension even to traditionally extroverted arenas like the corporate world. Understanding our social rhythms, whether we're introverts or extroverts, can also have a powerful impact on how we work, resolve conflict (at work or in relationships), and achieve our goals, even if they're on the edges of our comfort zones. Truly fascinating stuff. 
 (And as an aside, this is one of the many wonderful book recommendations that I've gotten over at Brain Pickings. It's a great blog -- I learn something new there every day.)