Who said "I'm not too concerned with it."?

This quote is attributed to Holden Caulfield.

I'm not too concerned with it. - Holden Caulfield

"I'm not too concerned with it."

Holden Caulfield Peace

Character in The Catcher in the Rye

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"It kills me. It really does."

"I'm the most terrific liar you ever saw in your life."

"Phoniness kills me. It really does."

"I really do. That's the thing about me. I'm quite the sexfiend."

"Peace comes from a good conscience."

"Life is too short to hold grudges."

"A man's home is his sanctuary. It should be treated as such."

"The world is chaotic enough. At least your home should make sense."