no man can do two things at once.一心不可二用。

no man is born wise or learned.没有生而知之者。

no man is content.人心不足蛇吞象

no man is wise at all times.聪明一世，糊涂一时。

none are so blind as those who won’t see.视而不见。

praise is not pudding.恭维话不能当饭吃。

praise makes good men better, and bad men worse.好人越夸越好，坏人越夸越糟。

prefer loss to unjust gain.宁可吃亏，不贪便宜。

prevention is better than cure.预防胜于治疗。

pride goes before, and shame comes after.骄傲使人落后。

promise is debt.一诺千金。

none are so deaf as those who won’t hear.充耳不闻。

no news is good news.没有消息就是好消息。

no one can call back yesterday.昨日不会重现。

no pains, no gains.没有付出就没有收获。