Some people really don't think twice before speaking, but we all should be thinking twice before launching this powerful tool of ours. Some people don't think about the person in front of them when speaking, how the person might take it, or how they might react to the comment.
Words shouldn't be rushed, actions can be rushed, physical wounds can be inflicted, we have ointments and medicines for all those physical wounds, but no medicine exists for our mental scars.
Our outer and very visible wounds always heal with time, but a harsh and abrupt set of words may last a lifetime, in a burdensome form.