don't argue for other people's weaknesses

Don't argue for other people's weaknesses. Don't argue for your own. When you make a mistake, admit it, correct it, and learn from it immediately. Dr. Stephen R. Covey Jangan perdebatkan kelemahan orang lain. (Apalagi) Jangan pula perdebatkan dirimu sendiri. Ketika membuat kekeliruan, akuilah, perbaiki itu, dan belajarlah darinya, seketika itu juga.