1,Neyver say die.永不言败。
2.No cross, no cron.不经历风雨，怎么见彩虹。
3.Ne ine in old bottles.旧瓶装新酒。
4.Never too old to learn, never too late to turn.亡羊补牢，为时未晚。
5.No garden ithout its eeds.没有不长草的园子。
6.No living man all things can.世上没有万事通。
7.No man can do to things at once.一心不可二用。
8.No man is born ise or learned.没有生而知之者。
9.No man is content.人心不足蛇吞象。
10.No man is ise at all times.聪明一世，糊涂一时。
11.None are so blind as those ho on't see.视而不见。
12.None are so deaf as those ho on't hear.充耳不闻。
13.No nes is good nes.没有消息就是好消息。
14.No one can call back yesterday.昨日不会重现。
15.No pains, no gains.没有付出就没有收获。
16.No pleasure ithout pain.没有苦就没有乐。
17.No rose ithout a thorn.没有不带刺的玫瑰。
18.No seet ithout seat.先苦后甜。
19.No smoke ithout fire.无风不起浪。
20.Nothing brave, nothing have.不入虎穴，焉得虎子。
21.Nothing dries sooner than a tear.眼泪干得最快。
22.Nothing in the orld is difficult for one ho sets his mind to it.世上无难事，只怕有心人。
23.Nothing is difficult to the man ho ill try.世上无难事，只要肯登攀。
24.Nothing seek, nothing find.没有追求就没有收获。
25.Nothing is so necessary for travelers as languages.外出旅行，语言最要紧。
26.Nothing is to be got ithout pains but poverty.世上唯有贫穷可以不劳而获。
27.Not to advance is to go back.不进则退。
28.Not to kno hat happened before one as born is alays to be a child.不懂世故，幼稚可笑。
29.No ay is impossible to courage.勇者无惧。
30.Obedience is the first duty of a soldier.军人以服从命令为天职。
31.Observation is the best teacher.观察是最好的老师。
32.Offense is the best defense.进攻是最好的防御。
33.Old friends and old ines are best.陈酒味醇，老友情深。
34.Old sin makes ne shame.一失足成千古恨。