"He that would make his own liberty secure...."

"He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."--Thomas Paine, Dissertation on First Principles of Government, The Writings of Thomas Paine, ed. Moncure D. Conway, vol. 3, p. 277 . Originally published in 1795.