Set a thief to catch a thief.

The end justifies the means.

When in Rome, do as Romans do.

A drowning man will clutch at a straw.

Ask no questions and hear no lies.

Never look a gift horse in the mouth.

Youth is wasted on the young.

Keep your powder dry.

He who hesitates is lost.

Hard work never did anyone any harm.

Robbing Peter to pay Paul.

While there is life, there is hope.

It's better to die on your feet than live on your knees.

The darkest hour is just before the dawn.

There are more ways of killing a cat than choking it with cream.

What goes around comes around.

Don't burn your bridges behind you.

All the world loves a lover.

Cheats never prosper.

Don't cross a bridge until you come to it.

Seek and you shall find.

The Devil makes work for idle hands.

Keep your friends close and your enemies closer.

A bird in hand is worth two in the bush.

One might as well be hanged for a sheep as a lamb.

It takes two to tango.

Tomorrow never comes.

Grief divided is made lighter.

A cat has nine lives.

Let the dead bury the dead.

He that goes a-borrowing, goes a-sorrowing.

The age of miracles is past.

It takes two to make a quarrel.

It's no use shutting the stable door after the horse has bolted.

Barking dogs seldom bite.

The harder you work, the luckier you get.

Time flies.

Everyone has their price.

A picture paints a thousand words.

A rising tide lifts all boats.

Easy come, easy go.

Put your shoulder to the wheel.

You can't unscramble a scrambled egg.

It takes one to know one.

Many are called, but few are chosen.

Every dog has its day.

It's better to travel hopefully than to arrive.

If the mountain won't come to Muhammad, Muhammad must go to the mountain.

Nothing ventured, nothing gained.

Red sky at night shepherd's delight; red sky in the morning, shepherd's warning.

Don't change horses in midstream.

Honesty is the best policy.

The proof of the pudding is in the eating.

Quid pro quo.

Don't test the depth of water with both feet.

Don't kill the goose that lays the golden eggs.

All's fair in love and war.

Mighty oaks from little acorns grow.

Cut your coat to suit your cloth.

One person's trash is another person's treasure.

It's better to be poor and healthy, than sick and wealthy.

Fools rush in where angels fear to tread.

There is many a good tune played on an old fiddle.

Imitation is the sincerest form of flattery.

One good deed deserves another.

Look before you leap.

The bigger they are, the harder they fall.

You can't run with the hare, and hunt with the hounds.

Bad news travels fast.

Fight fire with fire.

No man can serve two masters.

An empty vessel makes much noise.

First come, first served.

Once bitten, twice shy.

You can't teach an old dog new tricks.

An eye for an eye; a tooth for a tooth.

You can't make a silk purse out of a sow's ear.

Everyone is the architect of their own destiny.

No rest for the wicked.

If you can't stand the heat get out of the kitchen.

The enemy of my enemy is my friend.

Those who sleep with dogs will rise with fleas.

Don't throw good money after bad.

Don't meet troubles half-way.

Beware of Greeks bearing gifts.

Keep your mouth shut and your eyes open.

If you pay peanuts, you get monkeys.

Doubt is the beginning, not the end, of wisdom.

There is one law for the rich and another law for the poor.

Time and tide wait for no one.

Many hands make light work.

A person is known by the company they keep.

A little of what you fancy does you good.

If you can't beat 'em, join 'em.

Who pays the piper, calls the tune.

One year's seeding makes seven years weeding.

It's the singer not the song.

Flattery will get you nowhere.

Blood is thicker than water.

Strike while the iron is hot.