“The difference between a friend and an enemy is friendliness.”
“Ideas on earth were badges of friendship or enmity. Their content did not matter. Friends agreed with friends, in order to express friendliness. Enemies disagreed with enemies, in order to express enimity.”
“If I learned anything Downtown, it's this: the only real difference between an enemy and a friend is the day of the week.”
“Winning friends begins with friendliness.”
“And this was your friend?" Cordelia raised her eyebrows. "Seems to me the only difference between your friends and your enemies is how long the stand around chatting before they shoot you.”
“Shall there be truth between us, as two men? Not as friends, but as enemies and equals?”