When you are in your twenties,
even if you’re confused and uncertain 
about your aims and purposes,
you have a strong sense of what life itself is,
and of what you in life are,
and might become.

Later …later there is more uncertainty,
more overlapping, more backtracking,
more false memories.
Back then, you can remember
your short life in its entirety.

Julian Barnes in The Sense of an Ending