Who said "I had to know if she was real."?

This quote is attributed to Rick Deckard.

I had to know if she was real. - Rick Deckard

"I had to know if she was real."

Rick Deckard Knowledge

Character in Do Androids Dream of Electric Sheep?

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"It can't last."

"I'm not a replicant. I'm a human being."

"Kill them before they kill you."

"What is human? What separates us from machines?"

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."