111. Discontent is the first step in progress. 不满足是进取的第一步。

　　112. Do as I say， not as I do. 照我说的做，不要照我干的做。

　　113. Do as the Romans do. 入国问禁，入乡随俗。

　　114. Do it now. 说干就干，机不可失。

　　115. Do not attend to two things at a time. 一心不能二用。