The original quote is "Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety", and it's generally attributed to Benjamin Franklin (http://en.wikiquote.org/wiki/Benjamin_Franklin). However, according to the linked WikiQuote page, Franklin denied that he authored the phrase, and would take credit only for publishing it.
Regardless of who first said it or how, I heartily agree with the sentiment.
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Regardless of who first said it or how, I heartily agree with the sentiment.