Don’t ever think the poetry is dead in an old man because his forehead is wrinkled, or that his manhood has left him when his hand trembles! If they ever were there, they are there still!

Oliver Wendell Holmes, Sr. (1809-1894) American poet, essayist, scholar

Article (1858-03), “Autocrat of the Breakfast-Table,” Atlantic Monthly
    (Source)

Collected in Autocrat of the Breakfast-Table, ch. 5 (1858).