“Yonder stands your orphan with his gun, crying like a fire in the sun.”

Romeo, Act II, scene ii.
Variant: What light through yonder window breaks?
Source: Romeo and Juliet (1595)

Letter 368 to Stefano Maconi
https://books.google.com/books?id=LWNjf0Z4lyQC&pg=PA305&lpg=PA305&dq=%22If+you+are+what+you+ought+to+be,+you+will+set+fire+to+all+Italy,+and+not+only+yonder%22&source=bl&ots=6tw9wgS_zN&sig=5LhhXLw-1e1UzxXkUVoRnmMncdM&hl=en&sa=X&ved=0ahUKEwjjxcDfzuPJAhVPw2MKHcPYCiwQ6AEIKTAC#v=onepage&q=%22If%20you%20are%20what%20you%20ought%20to%20be%2C%20you%20will%20set%20fire%20to%20all%20Italy%2C%20and%20not%20only%20yonder%22&f=false
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
Variant versions:
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)

Source: A Century of Bank Rate (1938), Chapter IV, "Bank Rate and Deflation, 1934-32" p.144-145
Context: Once the gold standard was suspended, there could be no doubt of the purpose of that step. In face of the exchange risk the high rate could not possibly attract foreign money. It could only be intended as a safeguard against inflation. Fantastic fears of inflation were expressed. That was to cry, Fire, Fire, in Noah's Flood. It is after depression and unemployment have subsided that inflation becomes dangerous.

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 273.

My Heart's in the Highlands (1939)

Com Amor a rosa,
Que tão fresca, &c.
Rondeau http://books.google.pt/books?id=OcADAAAAQAAJ&pg=PA47&dq=%22Just+like+Love+is+yonder+rose%22&hl=pt-PT&sa=X&ei=WYM1VJ7IF6W07QblrIGACA&ved=0CDUQ6AEwAzg8#v=onepage&q=%22Just%20like%20Love%20is%20yonder%20rose%22&f=false in Poems, from the Portuguese of Luis de Camoens (1803) by Percy Smythe, 6th Viscount Strangford, p. 47; original source unclear.
Attributed