Question: What person quoted "No such thing as a stupid question" and also was in the Israeli-Palestinian conflict?
Answer(s):
answer: Colin Powell

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0cj5y)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0cj5y ns:time.event.people_involved ?x .
?x ns:people.person.quotations ns:m.0y4v5ct . 
}