Pondering this topic...
"Love is not love which alters
When it alteration finds,
Or bends with the remover to remove:
O no! It is an ever-fixed mark
That looks on tempests and is never shaken...
Love's not Time's fool, though rosy lips and cheeks
Within his bending sickle's compass come:
Love alters not with his brief hours and weeks,
But bears it out even to the edge of doom."