There is nothing either good or bad but thinking makes it so
In Shakespeare’s play, Hamlet says "there is nothing either good or bad but thinking makes it so." (Weller, Hamlet, Act II, scene II).
For more information about Hamlet, please see http://www.william-shakespeare.info/act2-script-text-hamlet.htm for the entire script.
For the complete works of Shakespeare, please see link http://www.william-shakespeare.info/index.htm