"Believe me, brethren, even if someone has just one passion as a habit, he will be subject to hell. Even if we do ten good deeds and one bad one, the bad one outweighs the good. It is like the eagle that is not captured by the snare, but only his claw is caught. Because of this he is captured and loses all his strength. Even if his whole body is outside the snare except just his claw can we say he has escaped? Anytime he so desires, the person who has placed the trap can take him. It is the same with the soul. If it has one passion hardened into a habit, the enemy can cast it down anytime he wishes because he controls it through that passion. It is for this reason that I will always tell you not to allow any passion to become a habit."
--Saint Dorotheos of Gaza