Henry Wadsworth Longfellow Quote

Patience; accomplish thy labor; accomplish thy work of affection!
Sorrow and silence are strong, and patient endurance is godlike.
Therefore accomplish thy labor of love, till the heart is made godlike,
Purified, strengthened, perfected, and rendered more worthy of heaven.

The Poems of Henry Wadsworth Longfellow ; Complete in One Volume (ed. 1849)