“When I was about thirteen years old, and had succeeded in learning to read, every increase of knowledge, especially anything respecting the free states, was an additional weight to the almost intolerable burden of my thought, 'I am a slave for life'. To my bondage I could see no end. It was a terrible reality, and I shall never be able to tell how sadly that thought chafed my young spirit.”
Source: 1880s, Life and Times of Frederick Douglass (1881), pp. 102–103.
Help us to complete the source, original and additional information
Frederick Douglass 274
American social reformer, orator, writer and statesman 1818–1895Related quotes

Regarding Paige's fame after Evita
Rock and pop (2006)

Diary entry (April 30, 1870) as quoted in Ralph Barton Perry, The Thought and Character of William James, vol. 1, p. 323; Letters of William James, vol. I, p. 147.
1870s

Source: Autobiography of Mark Twain, Volume 1 (2010), p. 210

J. Agee, trans. (1989), p. 64
Das Geheimherz der Uhr [The Secret Heart of the Clock] (1987)

http://www.espn.com/espn/feature/story/_/id/26113613/espn-world-fame-100-2019#mashrafe-bin-mortaza

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.