"We all have souls of different ages".
Says so F.Scott Fitzgerald in his "The Beautiful and Damned". And it is true, you find yourself through the years having accomplished (or not) certain things that make you who you are now. Moreover, those things tend to define your age. Here we're not talking about what says our biological clock. It's not it, Sir. Actually, it is not what we do that says who we are, but the way we do it.