“A 14-year-old Indiana girl was arrested after she came to a middle school with a handgun, ammunition, and six small bags of marijuana. Man, Dakota Fanning's growing up so fast!”

Source: All the Light We Cannot See

Speech at the Nobel Banquet (1991)

1850s, Autobiographical Sketch Written for Jesse W. Fell (1859)
Context: My father, at the death of his father, was but six years of age, and he grew up literally without education. He removed from Kentucky to what is now Spencer County, Indiana, in my eighth year. We reached our new home about the time the State came into the Union. It was a wild region, with many bears and other wild animals still in the woods. There I grew up.<!--p.33

Source: The Book Thief

Source: Ever After

I was 14, for God's sake!
Discussing her scene in My Father The Hero in an interview with FHM (October 2000)

Not found in Twain's works, this was attributed to him in Reader's Digest (September 1939): no prior attribution known. Mark Twain’s father died when Twain was eleven years old.
Disputed
Variant: When I was a boy of fourteen, my father was so ignorant I could hardly stand to have the old man around. But when I got to be twenty-one, I was astonished at how much the old man had learned in seven years.

[Sports Illustrated, http://sportsillustrated.cnn.com/preview/siexclusive/2006/pr/subs/siexclusive/05/22/wright0529/?url=http%253A%252F%252Fpremium.si.cnn.com%252Fpr%252Fsubs2%252Fsiexclusive%252F2006%252Fpr%252Fsubs%252Fsiexclusive%252F05%252F22%252Fwright0529%252F, Prince of the City, Lidz, Franz, 2006-05-22]

"Become the Media" (Track 10)
Become the Media (2000)