Part 1, Chapter 7.5; Nora's comment on her changes since meeting Travis
Watchers (1987)
“It's hard to have anything isn't it? Rare to get it, hard to keep it. This is a damn slippery planet.”
Source: Red Dragon
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Thomas Harris 66
American author and screenwriter 1940Related quotes

“Keep working hard and you can get anything that you want.”
From Treye Green's article "Happy 35th Birthday, Aaliyah: 15 Of The Singer's Best Quotes" (15 January 2014) http://www.ibtimes.com/happy-35th-birthday-aaliyah-15-singers-best-quotes-1542245
Attributed

“To work hard, to live hard, to die hard, and then go to hell after all would be too damn hard.”

“It's not how hard you hit. It's how hard you get hit…and keep moving forward.”
The Last Lecture (2008)

“Easy reading is damn hard writing.”
Also attributed to Ernest Hemingway and others; the earliest definite occurrence of this yet found in research for Wikiquote is by Maya Angelou, who stated it in Conversations With Maya Angelou (1989) edited by Jeffrey M. Elliot:
I think it's Alexander Pope who says, "Easy writing is damn hard reading," and vice versa, easy reading is damn hard writing
The statement she referred to is most probably:
You write with ease, to show your breeding,
But easy writing's curst hard reading
Clio's Protest, or the Picture Varnished (written 1771, published 1819) by Richard Brinsley Sheridan
Disputed

“Anything worth having is going to be hard”
Source: The Outlaw Demon Wails

Source: It's Not Easy Being Green: And Other Things to Consider