Samuel Beckett was a famous human artist, a playwright, novelist, and poet, who had a pessimistic nature to his work.
In 2370, Benjamin Sisko referred to Beckett, along with similarily natured Vincent Van Gogh and Y'Raka as an example of pessimistic artists who created something of great worth. Contrary to this fact, Gideon Seyetik described their works as "dreary, dark and depressing". (DS9: "Second Sight")