“Someone once told me the definition of Hell: The last day you have on earth, the person you became will meet the person you could have become.”
Related quotes

https://www.youtube.com/V32WHDuy-Do?t=904
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Entry (1953)
Eric Hoffer and the Art of the Notebook (2005)

2000s, Progressive magazine interview (2003)
Context: This supposed idyllic society we have is the most confused, warped, addicted society in the history of the world. We are addicted to power, we're addicted to our own image of ourselves, to violence, divorce, abortion, and sex. Any whim of the human character is deeded in us 100-fold. We're number one in child abuse, pornography, divorce, all of these categories; that's how we get paid back. You can't project something on someone else that is damaging that person and not become that yourself, it seems to me.

Source: No Mud, No Lotus: The Art of Transforming Suffering

Variant: There’s a real bonding in someone beating the crap out of you. - Rolly
Source: Just Listen

“If you meet someone who has the same first name as this person, you immediately like them less.”
Chuck Klosterman IV: A Decade of Curious People and Dangerous Ideas (2006), Recognizing Your Archenemy

Source: Y: The Last Man, Vol. 10: Whys and Wherefores