"....in our particular superstition of Christianity......". Love that phrase! Jefferson understood that it is only one of many human-invented superstitions that have been followed throughout the history of human-kind.
Fake. It appears in none of Jefferson's works. The earliest known appearance in print: 1914, earliest known appearance in print, attributed to Thomas Jefferson: 1994. http://www.monticello.org/site/jefferson/when-government-fears-people-there-libertyquotation
Thomas Jefferson In the thick of party conflict in 1800, Thomas Jefferson wrote in a private letter, "I have sworn upon the altar of God eternal hostility against every form of tyranny over the mind of man." This powerful advocate of liberty was born in 1743 in Albemarle County, Virginia, inheriting from his father, a planter and surveyor, some 5,000 acres of land, and from his mother, a Randolph, high social standing. He studied at the College of William and Mary, then read law.