I regard it as a point of honour always to keep my promises.

我把始终恪守诺言看作是事关名誉的大问题。

It was a point of honour with the washwoman to return the wash to its rightful owner.

对那个洗衣妇来说把所洗的衣物归还给原主是个信誉问题。

I always pay my debts punctually; it's a point of honour with me.

我还债总是很准时，这是我的名誉问题。