You would agree with me that you did not choose to have two hands or one mouth or two eyes. You should also agree with me that your parents did not have any say on the design of your body. But if you are to look at your body, everything comes in pairs; your eyes, your nostrils, ears, your left and right brain, left and right hands and legs, left and right ventricle of the heart and so on. But right smack in the middle of your face is one organ that is singularly alone: the mouth, your tongue. From there we can divine a particular message.
One should see twice as much as one speaks. One should think and hear twice as much as one speaks. One should work as much as one speaks. One should breathe twice as much as one speaks.
Yet we are all slave of the tongue. It never rests. We hardly think before we talk. We talk even in our sleep.
Ultimately, when it flows, talk is cheap . But if we restrict it to a drip, then every drop will resound and every word reverberate.
So does it not make sense if we use our tongue less since it is one organ that is singularly alone.