Poignancy, she told me, is the richest feeling humans experience, one that gives meaning to life — and it happens when you feel happy and sad at the … - Susan Cain

I've concluded that bittersweetness is not, as we tend to think, just a momentary feeling or event. It's also a quiet force, a way of being, a storied tradition—as dramatically overlooked as it is brimming with human potential. It's an authentic and elevating response to the problem of being alive in a deeply flawed yet stubbornly beautiful world.

Consider that the simplest social interactions between two people requires performing an astonishing array of tasks: interpreting what the other person is saying; reading body language and facial expressions; smoothly taking turns talking and listening; responding to what the other person said; assessing whether you're being understood; determining whether you're well received, and, if not, figuring out how to improve or remove yourself from the situation. Think of what it takes to juggle all this at once! And that's just a one-to-one conversation. Now imagine the multitasking required in a group setting like a dinner party.
(p237)

Solitude is out of fashion. Our companies, our schools and our culture are in thrall to an idea I call the New Groupthink, which holds that creativity and achievement come from an oddly gregarious place.