schopenhauer is kickass! Wish more people would read him. his academic philosophy is great and his essays are interesting... they still hold up despite the pass of time
Aurelius's Meditations is really nice too. it definitely had a good influence on Christianity
someone who hates all humans is more dangerous than someone who just hates a specific individual, but they're easier to remove from society just because they hate all people
i've heard it said before that if you love everyone equally, you aren't really loving anyone, because you lack discrimination..
i like the human side of philosophy, so like schopenhaur, nietzsche, dostoyevsky, maybe a bit of camus, maybe a bit of foucalt. and then marcus aurelius' little book of piratical life advice, meditations, tho i dunno is that considered philosophy.
the rest of it is dumb sht tbh. theory of forms and anything wittgenstein and all the rest. nietzsche has some line of psychology being the mother of all science or something actually but i can't remember it. closer to poetry or soul the better imo