心安理得

    xīnānlǐdé

    1. Verbto have a clear conscience; to have no qualms about something

    他靠劳动致富,花钱时心安理得。Tā kào láodòng zhìfù, huāqián shí xīn'ānlǐdé.He got rich through hard work, so he spends money with a clear conscience.