Here are the possible solutions for schopenhauer called him a clumsy charlatan clue
Answer
Clue
Relevancy
hegel
Clue
Schopenhauer called him a "clumsy charlatan"
neko
Clue
Rocker Case who tweeted "If a dude called me a 'cougar' I'd be more likely to kill him bare-handed and shit him out in front of his parents than fuck him"
boredom
Clue
Along with pain, one of "the two enemies of human happiness," per Schopenhauer
Definition
tedium
ennui
Clue
"The scourge of the fashionable world": Schopenhauer