A thief passes for a gentleman when stealing has made him rich

Sink or swim!

Fools may sometimes speak to the purpose

To kill two birds with one stone

The devil lurks behind the cross

Every man has a fool in his sleeve

It's no use pumping a dry well

The devil knows many things because he is old

Fine words butter no parsnips

Adversity is a great schoolmaster

Scornful dogs will eat dirty puddings

Curses like chickens come home to roost

Deeds, not words

The cask savours of the first fill

A light purse makes a heavy heart

Practise what you preach

The cat shuts its eyes when stealing cream

He that will eat the kernel must crack the nut

Well begun is half done

A great dowry is a bed full of brambles

An ill wound is cured, not an ill name

A tree is known by its fruit

Every dog has his day

After dinner sit (sleep) a while, after supper walk a mile

He who makes no mistakes, makes nothing

A friend to all is a friend to none

Every ass loves to hear himself bray

An oak is not felled at one stroke

It is no use crying over spilt milk

Score twice before you cut once