“The dogmatist within is always worse than the enemy without.”
“There are two kinds of people in the world, the conscious dogmatists and the unconscious dogmatists. I have always found myself that the unconscious dogmatists were by far the most dogmatic.”
“There is nothing worse than an enemy with imagination.”
“No enemy is worse than bad advice.”
“There are few things worse than mistaking an enemy for a friend.”
“The one thing worse than an enemy is a friend turned false.”