Question: What were the inventions of the person that said "The noblest pleasure is the joy of understanding"?
Answer(s):
answer: Anemometer
answer: Diving suit
answer: Ornithopter
answer: Viola organista
answer: Double hull
answer: Parachute
answer: Triple Barrel Canon
answer: 33-Barreled Organ
answer: Aerial Screw
answer: Armored car

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:people.person.quotations ns:m.048d0t_ . 
?c ns:law.inventor.inventions ?x .
}