What do the people of your country say that quintessentially displays an aspect of your national consciousness, entirely or partially?
Here in Ireland it’s quite common to say “If you didn’t laugh, you’d cry”, meaning if you didn’t force yourself to look on the bright side of things and laugh whenever you can then you would be overwhelmed by how crap the world really is. It’s not the best one by far but it’s one that sticks with me.
Edit: after reading through so many of these sayings I’m forced to come to the conclusion that us Europeans are an incredibly pessimistic bunch of people, with a special mention to the Finns. You guys really know what it means to be sad!

你们国家的人有没有什么典型的说法,能部分或完全地昭显你们民族意识的方方面面?
在我们爱尔兰,人们常说,“如果你不笑,你就会哭”,意思是说,如果你不强迫自己去看事情的光明面,并且尽可能地笑,那你就会被这个世界真正的龌龊部分淹没。到目前为止,这不是最精辟的一句话,但却是常挂我心的一句话。
补充:在读完各位给出的这么多谚语之后,我不得不得出这样的结论:我们欧洲人真是一群极为悲观的人,特别要点名芬兰人,你们这些家伙真是深谙悲哀的真正含义!