I don't want to rust out, I'd rather wear out.

I'd much rather wear out than rust out.

It is better to rust out than wear out.

Few minds wear out; more rust out

I'm truly worried about the country's direction. I can tell you this categorically, we've got the weakest president and the weakest governor in the history of my 50 years of public service.

I don't fear that a man will wear out as quickly as he will rust out.