“Look! A see-through wall of glass!”

"Each Day I Live in a Glass Room," A Reverie of Bone and other Poems (1967)

Source: Wasted: A Memoir of Anorexia and Bulimia

Source: Reasons and Persons (1984), p. 281
Context: Is the truth depressing? Some may find it so. But I find it liberating, and consoling. When I believed that my existence was a further fact, I seemed imprisoned in myself. My life seemed like a glass tunnel, through which I was moving faster every year, and at the end of which there was darkness. When I changed my view, the walls of my glass tunnel disappeared. I now live in the open air. There is still a difference between my life and the lives of other people. But the difference is less. I am less concerned about the rest of my own life, and more concerned about the lives of others.

Variant: If slaughterhouses had glass walls, everyone would be a vegetarian.

Source: Linda's Kitchen: Simple and Inspiring Recipes for Meals Without Meat

2015-07-21
Trump Campaign Statement on Rick Perry
NPR
http://www.npr.org/sections/itsallpolitics/2015/07/21/424994751/the-best-insults-of-the-trump-kickoff-speech
2010s, 2015

Catherine Earnshaw (Ch. XV).
Source: Wuthering Heights (1847)
Context: The thing that irks me most is this shattered prison, after all. I’m tired, tired of being enclosed here. I’m wearying to escape into that glorious world, and to be always there; not seeing it dimly through tears, and yearning for it through the walls of an aching heart; but really with it, and in it.

Source: The Year of the Flood