Control.
TV has remote control.
Even digital fan also have remote control.
Human, have remote control too.
We're the controller of our lives.
We control our emotion, control our temper, control when to pee/shit, control our ways of speaking and control the thoughts of mind.
Sometimes i feel God created human in such a great way that He gave us mind to control a lot of things. However, the most uncontrollable subject in human must be the speech from our mouth. Often, people talk. Communication is very important. A real communication involves a lot of technique and knowledge. We learn how to talk under a proper setting. We talk & we crap. We chat about recent happenings, latest people that we meet.
Have you ever tried to control your temper? That you hold your anger so tightly until you can feel is on the tip of your throat? :) It's unbearable, but it is worthy because you never knew the anger that had subsided actually salvage your relationship with people. :) That's what i meant "control". Remember, words hurt more than anything in the world. We love people because we have love in ourselves. Try to think of others, just like how we think for ourselves :)