— Catherine of Siena
Letter 368 to Stefano Maconi
Original Italian: Se sarete quello che dovete essere, metterete fuoco in tutta Italia, non tanto costì. https://books.google.com/books?id=KX8Nu_SRy7wC&pg=PA461&dq=Se+sarete+quello+che+dovete+essere,+metterete+fuoco+in+tutta+Italia,+non+tanto+costi.&hl=en&sa=X&ved=0ahUKEwi55pmdzuPJAhUU3GMKHY8OBCUQ6AEIHDAA#v=onepage&q=%22Se%20sarete%20quello%20che%20dovete%20essere%2C%20metterete%20fuoco%20in%20tutta%20Italia%2C%20non%20tanto%20costi.%22&f=false
If you are what you should be, you will set the whole world on fire!
If you are what you should be, you will set the whole world ablaze! As quoted by Pope John Paul II in | an address to the Regnum Christi Movement and the Legionaries of Christ (4 January 2001) http://w2.vatican.va/content/john-paul-ii/en/speeches/2001/january/documents/hf_jp-ii_spe_20010104_legionari-cristo.html
Also as quoted by Pope John Paul II in | The Closing Homily at World Youth Day, Tor Vergata, (Sunday 20 August 2000) http://w2.vatican.va/content/john-paul-ii/en/homilies/2000/documents/hf_jp-ii_hom_20000820_gmg.html
Be who God meant you to be and you will set the world on fire.
As quoted by Bishop Richard Chartres in his sermon to the Royal Wedding congregation at Westminster Abbey (29 April 2011)