From the song 'In happy moments day by day'
in the opera Maritana Act II scene 1
Composed by William Vincent Wallace (1812 - 1865) & Edward Fitzball (1792 - 1873).
'In happy moments, day by day, the sands of life may pass
In swift but tranquil tide away, for time's unerring glass.
Yet hopes we used as bright to deem remembrance will recall.
Whose pure and whose unfading beam is dearer than them all...'