My mother doesn't mind who comes to stay, she's very easy-going.
我母亲不在乎有什么人来往,她十分随和。
No man can make a good coat with bad cloth.
巧匠难以劣布制美服。
When we use a phrase like 'it serves him right', we are, in part, admitting that a certain set of circumstances has enabled justice to act of its own accord.