"Oh and I almost forgot, one more demand: we need eight billions dollars to construct an imaginary Large Hadron Collider to help us with our thought experiments."

Ironically, it is the best of all possible worlds where most people think The Monadology is stupid.

Parmenides believed that reality was unified, eternal, and unchanging. He thought any change we see is only an illusion. His pupil, Zeno, went on to come up with many famous thought experiments, showing the inherent contradictions in believing that the Universe is divisible into parts, or that change or motion occurs.
Leibniz believed that God would create the Universe in the most perfect possible way, because God is perfectly rational, and perfectly good, He would only select the best possible Universe to be the one that was actually created. I know that seems unlikely, on account of how this world is total garbage, but the other possible worlds probably don't even have amazing huge wigs, or something like that.

"Also, buy my new book 'How to be Totally Stoic in 21 Easy Steps'"
"What the hell, all the pages are blank, I want my money back!"
"Ah, you can't change the book though, you can only change your reaction to the book. Also, no refunds."

And so Hume's skepticism was defeated. Or...was it? Can we really ever know? Dun dun dunnnnnn.

See the notes on The Fresh Prince of Philosophy, where Kant defeated Hume's skepticism with his sweet rhymes.

"A communist society will be organzied by the principle: from each according to his ability, to each according to his need"
"Marx, chain smoking is NOT an ability"
"Oh yeah? Then I'd like to see you try it"

The writing of the Communist Manifesto isn't too far off this. After being tasked with writing it, Marx procrastinated, dragged his feet, and even worked on other stuff as the deadline approached. In his personal life, Marx was known for chain smoking, heavy drinking, and generally not a very healthy lifestyle. He would do things like go on pub crawls, where he drank one beer at each pub on a certain street, and then threw rocks at the lamp posts at the end of the street. I guess there were like 15 pubs, so yeah, he was a bit of a drinker. The final draft of the manifesto was written entirely by Marx, despite Engels being given a coauthor credit. By Engel's own admission, pretty much all of the ideas came from Marx as well, so it isn't super clear what he did aside from buy the drinks. "A Frightful Hobgoblin" was the original English translation of "A Spectre" of the iconic opening line (A spectre is haunting Europe — the spectre of communism). So Marx didn't actually write that in German (he used the German word Gespenst, which is closer to Spectre or Ghost).