There's none so blind as those who won't see.
Those who do not learn from history are doomed to repeat it.
Time is the soul of business.
To bring grist to somebody's mill.
To cut one's throat with a feather.
To go for wool and come home shorn.
To make (to turn) the air blue.
To run with the hare and hunt with the hounds.
To travel hopefully is a better thing than to arrive.
Too swift arrives as tardy as too slow.
Two sides of the same coin.
The devil rebuking sin.
The first blow is half the battle.
The last straw breaks the camel's back.
The nearer the bone, the sweeter the meat.
The screwing you get isn't worth the screwing you get.
The whistle doesn't pull the train.
There is but an hour a day between a good housewife and a bad one.
There's honor among thieves.
There's none so deaf as those who will not hear.
Those who live in glass houses shouldn't throw stones.
Time trieth truth.
To build a fire under oneself.
To draw (pull) in one's horns.
To go through fire and water (through thick and thin).