Those who enter to buy, support me. Those who come to flatter, please me. Those who complain, teach me how I may please others so that more will come. Those only hurt me who are displeased but do not complain. They refuse me permission to correct my errors and thus improve my service.
Marshall FieldTwelve Priceless Qualities of Success: 1. The value of time. 2. The success of perseverance. 3. The pleasure of working. 4. The dignity of simplicity. 5. The worth of character. 6. The power of kindness. 7. The influence of example. 8. The obligation of duty. 9. The wisdom of economy. 10. The virtue of patience. 11. The improvement of talent. 12. The joy of originating.
Marshall Field