Related:

• Turlough speaks the truth, Doctor. -- Kamelion, "Caves of Androzani.
• Your enemies are closing in.
• If you look like your driver's license photo -- see a doctor.
  If you look like your passport photo -- it's too late for a doctor....
• Smile. It pleases your friends and annoys your enemies!
• Get your enemies to read your works in order to mend them, for your friend is so much your second self that he will judge too like you.
  -- Pope...
• Be Nice to Your Enemies, It Drives Them Nuts.
• Get back at your enemies, make them Sysops!
• The best way to avoid your enemies is to outlive them.
• Love your enemies. It'll make 'em crazy.