Who are you? What defines you? What makes you, you?

In the past an individual's identity was more predictable than it is today. Life's big questions were basically settled before you were born: where you'd live, what you'd do, the type of person you'd marry, your basic beliefs, and so on. Today personal identity is a do-it-yourself project. Constructing a stable and satisfying sense of self is hard amidst relationship breakdowns, the pace of modern life, the rise of social media, multiple careers, social mobility, and so on. Ours is a day of identity angst.

Known by...