The good are better made by ill,

As odours crushed are sweeter still.

Samuel Rogers (1763-1855): Jacqueline. Stanza 3.

Truth crushed to earth shall rise again,—

The eternal years of God are hers;

But Error, wounded, writhes with pain,

And dies among his worshippers.

William Cullen Bryant (1794-1878): The Battle-Field.