The good with the bad

What is happiness without sorrow,
not sure that's a life I would borrow.
How do you know good from bad,
if you've never tried to be sad?
Enjoy the small pleasures in life,
like spending a quiet evening with your wife.
We constantly try to avoid making a mistake,
but do we really do it for our sake?
Enjoy life and do your best
don't even worry about the rest.
Try not to get lost in the pain,
or else you will go insane.
Live everyday like your last,
death can come untimedly and fast!