...My face in thine eye, thine in mine appears,
And true plain hearts do in the faces rest ;
Where can we find two better hemispheres
Without sharp north, without declining west ?
Whatever dies, was not mix'd equally ;
If our two loves be one, or thou and I
Love so alike that none can slacken, none can die.
from The Good-Morrow by John Donne, in Songs and Sonnets (1633)