Related:

• As well look for a needle in a bottle of hay. -- Miguel de Cervante
• Let us make hay while the sun shines. -- Miguel de Cervantes (1547-1616) -- Don Quixote, Part i, Book iii, Chap.
  xi...
• Mum's the word. -- Miguel de Cervante
• I can look sharp as well as another, and let me alone to keep the cobwebs out of my eyes.
  -- Miguel de Cervantes (1547-1616) -- Don Quixote, Part ii, Book iii, Chap. xxxiii...
• A word to the wise is enough. -- Miguel de Cervante
• Be slow of tongue and quick of eye. -- Miguel de Cervante
• Mind your own business. -- Miguel de Cervante