Whatever an enemy might do to an enemy, or a foe to a foe, the ill-directed mind can do to you even worse.
When the student is ready, the teacher will appear.
What you are is what you have been. What you'll be is what you do now.
Whatever words we utter should be chosen with care for people will hear them and be influenced by them for good or ill.
When one has the feeling of dislike for evil, when one feels tranquil, one finds pleasure in listening to good teachings; when one has these feelings and appreciates them, one is free of fear.