The phrase "I don't care" shows little interest or concern about a topic, choice, or outcome. Depending on tone, it can sound neutral, dismissive, bored, or rude.
I don't care about money, I just want to be wonderful. Marilyn Monroe
I don't care what you think about me. I don't think about you at all. Coco Chanel
As long as my face is on page one, I don't care what they say about me on page seventeen. Mick Jagger
I don't care who does the electing, so long as I get to do the nominating. William M. Tweed
If the tail of the dog can save me, I don't care about its stench. Tunisian Proverb
I don't care what people say as long as I get what want. Spanish Proverb