The nuclear arms race is like two sworn enemies standing waist deep in gasoline, one with three matches, the other with five. - Carl Sagan
I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson
Good manners and good morals are sworn friends and fast allies.
I have sworn thee fair, and thought thee bright, Who art as black as hell, as dark as night. - William Shakespeare
Their Oath shall drive them, and yet betray them, and ever snatch away the very treasures that they have sworn to pursue. - J. R. R. Tolkien
I have wedded her, not bedded her; and sworn to make the 'not' eternal. - William Shakespeare
Nature smiles at the union of freedom and equality in our utopias. For freedom and equality are sworn and everlasting enemies, and when one prevails the other dies. - Will Durant
Integrity is the antithesis of compromise and the sworn enemy of comfort. It bases its decisions not on how much discomfort we might be able to avoid, but on how much we need to avoid the compromise of comfort. - Craig D. Lounsbrough
Some people, though related by blood, are as sworn enemies. Others, bound only by friendship, would die for one another. - Beem Weeks