自作自受
As you make your bed so you must lie on it.
自討苦吃
to make a rodfor one's own back
自力更生
to shift for oneself
自掃門前雪
After us the deluge.
回頭浪子
the return of a prodigalson
先下手為強
Offence is the best defence.
同甘共苦
to share one's joys and sorrows
因地制宜
act according to circumstances
有勇無謀
more brave than wise
有備無患
Good watch prevents misfortune.