“If those are your friends, you've got no need for enemies.”
“You've got to take it on faith that the enemy of your enemy is your friend.”
“How do I know I can trust you?''You can't,' he said bluntly. 'You've got to take it on faith that the enemy of your enemy is your friend.”
“Don't explain. Your friends do not need it, and your enemies will not believe you”
“Never explain―your friends do not need it and your enemies will not believe you anyway.”
“Never explain yourself. Your friends don’t need it and your enemies won’t believe it.”