I was watching 'Suits'. I encountered this
Mike: This woman had her life ripped apart. You don’t even care?
Harvey: I’m not about caring. I’m about winning.
Mike: Why can’t you be about both?
I could understand what Harvey says : I'm not interested in caring. I'm interested in winning. (That is what I understand)
I don't exactly understand about 'about' in this sentence.
Plus, you can also find out be about in the next sentence.
What does 'I'm about noun' mean?
Could I get more examples?
Your interpretation, "I'm not interested in caring; I'm interested in winning," is correct.
And you could extend that to the third line: "why can't you be about both" is equivalent to "why can't you be interested in both."
See definitions 3 and 4c of the preposition form here.
3 engaged in
4c fundamentally concerned with or directed toward
You can see it in conversations like this:
I love decorating for the holidays.
Me too. I'm all about that.
Note that "I'm about something" (and also "I'm all about something") are still considered somewhat slang; I wouldn't use them in formal written language. "I'm all about that" = I enjoy it highly, it's my primary goal or focus, it's what I'm most concerned about, it's a defining feature of my personality or identity.
