106. Diamond cut diamond. 势均力敌。

　　107. Diligence is the mother of good luck. 幸运出自勤奋。

　　108. Diligence is the greatest of teachers. 勤奋是更伟大的导师。

　　109. Diligence is the mother of success. 成功来自勤奋。

　　110. Disappointment is the nurse of wisdom. 挫折哺育智慧。