It is just like English sayings and phrases, there are Japanese sayings and phrases as well. It is called [kotowaza ことわざ].

What is the KOTOWAZA?

Kotowaza is the Japanese saying/phrases which expresses people’s wisdom and it has been told by many people from long time ago. And it is an example of something and a teachings of the life.

Today’s kotowaza

後は野となれ山となれ/ATOWA NO TO NARE YAMA TO NARE

Its meaning

Do not care what happens afterward. (even if it becomes a field or a mountain).

It might be similar to a French expression and an English expression.

 After us (or me) the deluge/after us it may flood

How to use it

Ashita Kyu ni utanai ka to iwareta. Shikatanai, rennsyuu suru. Ato wa no to nare yama to nare. ,

I was suddenly asked to sing songs tomorrow. No much I can do but do practicing. I do not care what happens afterwards.

arigato