Christmas comes but once a year.圣誕一年只一度。

　　Deliberate slowly,執行 promptly.慢慢酌量，快快行動。

　　Dexterity comes by experience.熟練來自經驗。

　　Diligence is the mother of good fortune.勤勉是好運之母。

　　Diligence is the mother of success.勤奮是成功之母。

　　Do as most men do and men will speak well of thee.照大多數人那樣干，人們會把你稱贊。

　　Do business, but be not a slave to it.要做事，但不要做事務的奴隸。

　　Doubt is the key of knowledge.懷疑是知識之鑰。

　　Every tide has its ebb.潮漲必有潮落時。

　　Everybody’s business is nobody’s business.眾人的事就是無人過問的事。