" Your past is not an excuse. But it is an explanation—offering insight into the questions so many of us ask ourselves: Why do I behave the way I behave? Why do I feel the way I do? For me, there is no doubt that our strengths, vulnerabilities, and unique responses are an expression of what happened to us. "

― Bruce D. Perry , What Happened To You?: Conversations on Trauma, Resilience, and Healing