a heart of stone
an aching heart, alone
heavy heart's sadness
light hearted gladness
pour one's heart out
hide one's heart's doubts
the heart of the matter
a heart felt chatter
your heart on your sleeve
your beating heart relieved
a heart of gold
a heart growing old
one's hearts desire
sets another's heart on fire
your heart stand still
your heart is ill
the heart rules the mind
a cold heart, so unkind
a heart in the right place
a heart for the whole human race
the heart does so much more than merely pump blood