When The Iron Is Hot, Strike.

Look Before You Leap.

Would Ye Both Eat Your Cake And Have Your Cake? This Is Commonly Misquotes As You Can't Have You're Cake And Eat It, Too.

I Know On Which Side My Bread Is Buttered.

Better To Give Then To Take.

I Pray Thee Let Me And My Fellow Have A Haire Of The Dog That Bit Us Last Night.