Expressions:
Metaphors: Conventional Idioms 

To make an omelette, you have to break a few eggs. 

The early bird catches the worm. 

A rolling stone gathers no moss. 

There's no use crying over spilled milk. 

Back to the drawing board.

You´re barking up the wrong tree.

Quit beating around the bush.

I bit off more than I could chew.

He was born with a silver spoon in his mouth.

We'll cross that bridge when we come to it. 

Don't count your chickens before they hatch. 

Dont put all your eggs in one basket. 

to kill two birds with one stone

There are too many cooks in the kitchen. 

You can't teach an old dog new tricks. 

to have something up your sleeve 

to answer the call of nature

to keep someone at arm's length

The ball's in your court. 

It's a whole new ball game.

I've been burning my candle at both ends. 

I have butterflies in my stomach. 

He let the cat out of the bag. 

If he plays his cards right...

That's the way the cookie crumbles