Johnblade: May we never let the things we can't have, or don't have, or shouldn't have, spoil our enjoyment of the things we do have and can have. As we value our happiness let us not forget it, for one of the greatest lessons in life is learning to be happy without the things we cannot or should not have.
I think u want to say, even we are sad by something we must not forget to smile,well this is my division in life,we learn from mistakes ,from bad experiences but we mustn't forget to smile,life is nice and desrves to be lived