Actor Bill Murray on Friday said he believes Americans need to be more personally responsible for their well-being.

"I think we ought to be personally responsible," he said on CNBC's "Squawk Box" Friday morning. "I think if you can take care of yourself, and then maybe try to take care of someone else, that's sort of how you're supposed to live.

"It's not a question of asking other people for help or being rescued or anything like that," he continued. "I think we've sort of gotten used to someone looking out for us, and I don't think any other person is necessarily going to be counted on to look out for us.

"I think there's only so many people that can take care of themselves, and can take care of other people. And the rest of the people … they're useful in terms of compost for the whole planet, you know."