Shakespeare

All that glisters is not gold, 
Often have you heard that told:
Many a man his life hath sold,
But my outside to behold:
Gilded tombs do worms infold.
Had you been as wise as bold,
Young in limbs, in judgment old,
Your answer had not been inscroll'd.
Fare you well, your suit is cold. 

In Merchant of Venice  
Prince of Morocco, reading Portia's note, scene vii