眼淚乾得最快。
nothing in the world is difficult for one who sets his mind to it.
世上無難事，只怕有心人。
nothing is difficult to the man who will try.
世上無難事，只要肯登攀。
nothing seek, nothing find.
沒有追求就沒有收穫。
nothing is so necessary for travelers as languages.
外出旅行，語言最要緊。
nothing is to be got without pains but poverty.
世上唯有貧窮可以不勞而獲。
not to advance is to go back.
不進則退。
not to know what happened before one was born is always to be a child.
不懂世故，幼稚可笑。
no way is impossible to courage.
勇者無懼。
obedience is the first duty of a soldier.
軍人以服從命令為天職。
observation is the best teacher.
觀察是最好的老師。
offense is the best defense.
學問齋