Richelle E. Goodrich said this quote

Life is a valuable and unique opportunityto discover who you are.But it seems as soon as you nearanswering that age-old question,something unexpected always happensto alter your course.And who it is you thought you weresuddenly changes.Then comes the frustrating realizationthat no matter how long life endures,no matter how many experiencesare muddled through in this existence,you may never really be ableto answer the question....Who am I? Because the answer, like the seasons,constantly, subtly, inevitably changes.And who it is you are today,is not the same person you will be tomorrow.