How wretched is the man who never mourned! [ Young ]

Love's arms were wreathed about the neck of Hope,
And Hope kiss'd Love, and Love drew in her breath
In that close kiss and drank her whispered tales.
They say that Love would die when Hope was gone.
And Love mourned long, and sorrowed after Hope;
At last she sought out Memory, and they trod
The same old paths where Love had walked with Hope,
And Memory fed the soul of Love with tears. [ Tennyson ]

Having mourned your sin, for outward Eden lost, find paradise within. [ Dryden ]

We have often thought it strange that moralists should have written and spoken of the mutability of human life as if it were a thing to be dreaded and mourned over; to our mind, mutability is the soul of poetry, and the source of nearly all the most delightful and sacred pleasures of life. [ Stubbs ]