There's many a slip 'twixt cup and lip.

Build a better mousetrap and the world will beat a path to your door.

Once bitten, twice shy.

Don't look a gift horse in the mouth.

Big fish eat little fish.

Two wrongs don't make a right.

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

Empty bags cannot stand upright.

A house divided against itself cannot stand.

Power corrupts; absolute power corrupts absolutely.

Brevity is the soul of wit.

Don't let the cat out of the bag.

Discretion is the better part of valour.

Tomorrow is another day.

Fair exchange is no robbery.

Too many cooks spoil the broth.

Appearances can be deceptive.

A bad penny always turns up.

Marry in haste, repent at leisure.

Life begins at forty.

Curiosity killed the cat.

Possession is nine points of the law.

Manners maketh the man.

Honesty is the best policy.

Hard work never did anyone any harm.

Every picture tells a story.

Cut your coat to suit your cloth.

Adversity makes strange bedfellows.

Life's not all beer and skittles.

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

Give someone enough rope and they will hang themself.

There's no smoke without fire.

Rain before seven, fine before eleven.

Blood is thicker than water.

The whole is greater than the sum of the parts.

The apple never falls far from the tree.

Nature abhors a vacuum.

You can't make an omelette without breaking a few eggs.

Love makes the world go round.

Silence construes consent.

A picture paints a thousand words.

Pride comes before a fall.

You can't win them all.

Faint heart never won fair lady.

Fall seven times. Stand up eight.

It takes one to know one.

Hope for the best, prepare for the worst.

Practice what you preach.

He who fights and runs away, lives to fight another day.

There are none so blind as those, that will not see.

Time is a great healer.

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

You can't fit a round peg in a square hole.

Make love not war.

Physician, heal thyself.

Let sleeping dogs lie.

There are plenty more fish in the sea.

Where there's a will, there's a way.

It's the squeaky wheel that gets the grease.

That which does not kill us makes us stronger.

Put your best foot forward.

Take care of the pennies and the pounds will take care of themselves.

Out of sight, out of mind.

Better safe than sorry.

There's none so blind as those who will not see.

It's better to wear out, than to rust.

Worrying never did anyone any good.

It's the singer not the song.

It takes two to tango.

The best-laid plans go astray.

A golden key can open any door.

Don't throw good money after bad.

An idle brain is the devil's workshop.

Don't blow your own trumpet.

Blessed are the peacemakers.

An empty vessel makes much noise.

The darkest hour is just before the dawn.

Money isn't everything.

All things must pass.

Shrouds have no pockets.

Jam tomorrow and jam yesterday, but never jam today.

If you can't be good, be careful.

Don't bite off more than you can chew.

You can't always get what you want.

There's safety in numbers.

Bad news travels fast.

All publicity is good publicity.

Marriages are made in heaven.

First come, first served.

Third time lucky.

There's one born every minute.

You are what you eat.

One year's seeding makes seven years weeding.

What's sauce for the goose is sauce for the gander.

A watched pot never boils.

Bread always falls buttered side down.

All the world loves a lover.

Patience is a virtue.

Less is more.

Pearls of wisdom.