Richard Flanagan said this quote

Men's lives are not progressions, as conventionally rendered in history paintings, nor are they a series of facts that may be enumerated & in their proper order understood. Rather they are a series of transformations, some immediate & shocking, some so slow as to be imperceptible, yet so complete & horrifying that at the end of his life a man may search his memory in vain for a moment of correspondence between his self in his dotage & him in his youth.