Decode the hidden quote 🤐

[ParanoidUser]

This is a type of a shift cipher in which the message is encrypted by replacing the original letters with “x” number of characters ahead (or before) in the alphabet. Find the original letters to reveal the hidden message. You have finished the puzzle when you have decoded the full message.

QCNB AOHM SIO WUH
ECFF NYLLILCMNM,
QCNB YXOWUNCIH SIO
WUH ECFF
NYLLILCMG.

Bonus: Name the author.

[tomerf]

"WITH GUNS YOU CAN KILL TERRORISTS, WITH EDUCATION YOU CAN KILL TERRORISM." was said by Malala Yousafzai