Diligence is the mother of success.勤奋是成功之母。
Christmas comes but once a year.圣诞一年只一度。
Diligence is the mother of good fortune.勤勉是好运之母。
Deliberate slowly,执行 promptly.慢慢酌量，快快行动。
Dexterity comes by experience.熟练来自经验。
Do as most men do and men will speak well of thee.照大多数人那样干，人们会把你称赞。
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Doubt is the key of knowledge.怀疑是知识之钥。励志名言
Every tide has its ebb.潮涨必有潮落时。
Everybody’s business is nobody’s business.众人的事就是无人过问的事。
Do business, but be not a slave to it.要做事，但不要做事务的奴隶。