The fragility of the heart is the closest certainty I know
I used to think a broken heart was a hyperbola
give a description of your remission  
the loudest sound of all love unspoken
yet we always hear the sound of love broken
and if  you repair something broken
it is never the same even if the flaws are never seen
the more it breaks the harder it will be to pawn off as being in  perfect condition
if you sew up an incision you will most likely see a scar