PChristmascomesbutonceayear.圣诞一年只一度。P
PP
PDeliberateslowly,执行promptly.慢慢酌量，快快行动。P
PP
PDexteritycomesbyexperience.熟练来自经验。P
PP
PDiligenceisthemotherofgoodfortune.勤勉是好运之母。P
PP
PDiligenceisthemotherofsuccess.勤奋是成功之母。P
PP
PDoasmostmendoandmenwillspeakwellofthee.照大多数人那样干，人们会把你称赞。P
PP
PDobusiness,butbenotaslavetoit.要做事，但不要做事务的奴隶。P
PP
PDoubtisthekeyofknowledge.怀疑是知识之钥。P
PP
PP
PEverytidehasitsebb.潮涨必有潮落时。P
PP
PEverybody’sbusinessisnobody’sbusiness.众人的事就是无人过问的事。
