“Never be so busy as not to think of others.”
“What other people think of me is not my business.”
“What other people think about me is none of my business .”
“Most people are so busy knocking themselves out trying to do everything they think they should do, the never get around to doing what they want to do.”
“What business had I to think of one that never thought of me?”
“It is one of my sources of happiness never to desire aknowledge of other people's business.”