Actually reading Aristotle's Nichomachean Ethics is worth it. Not because he's right about everything (he has some pretty messed up and weird views), but because it's challenging and good to think on, and chances are you'll take something away for yourself that you wouldn't have gotten from some webpage that took one-liners out of context, some of which aren't even by Aristotle.
It’s weird and messed up because Aristotle’s audience isn’t Christian or even Abrahamic the slightest. He’s right about rejecting abstract definitions that aren’t grounded in the elements of a situation however.
> he has some pretty messed up and weird views
What’s an example?
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It's helpful to read the ethics in light of the metaphysics. Beings aren't fixed but actualize their (possibly-growing) capabilities. Happiness lies in friendship, not fame or power or wealth, not because they're not good to have, but because for we humans as intelligent, social, self-aware beings, we can only actualize our craft and self-understanding in the context of others with some understanding of the craft and insight into each other, particularly with respect to building character, one's own and others'.
The first section is simple but profound: all beings strive for the good for themselves, so we have a starting point to address the good of each and possibly all even across fundamental differences.
> he has some pretty messed up and weird views
They do, but by insisting on rationalizing any view rather than leaving it as a religious given, he sets the stage for destroying bias. Remember, Aristotle trained Alexander, and Alexander's military was successful because they embraced rather than destroying the people conquered (if they didn't fight back), and they even lost a fair bit of his Greek ways.