Known sourcecanonical
"Time may restore us in his course Goethe's sage mind and Byron's force; But where will Europe's latter hour Again find Wordsworth's healing power?"
Matthew Arnold / Memorial Verses.
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain
Bartlett's Familiar Quotations, 9th ed. (Little, Brown, 1905), public domain