You can't squeeze blood from a turnip

You can't fit a round peg in a square hole, You Can't Go Home Again, You can't have your cake and eat it too, You can't make an omelet without breaking eggs, You can't make a silk purse from a sow's ear, You can't squeeze blood from a turnip, You can't take it with you, You can't teach an old dog new tricks, You can't unscramble an egg, you can't win, you can't win 'em all