btul..

i am not interested in the past.I am interested in the future,for that is where i expect to spend the rest of my life.
and
i avoid looking forward or backward,and try to keep looking upward.
then..
learn from the past.Do not come to the end of your life only to find you have not lived...
but,
when your bow is broken and your last arrow spent,then shoot,shoot with your whole heart.

:)