"When you are trying to impress people with words, the more you say, the more common you appear, and the less in control. Even if you are saying something banal, it will seem original if you make it vague, open-ended, and sphinxlike. Powerful people impress and intimidate by saying less. The more you say, the more likely you are to say something foolish." - Robert Greene.
As I mentioned in my previous post, we will continue discussing some of the things that Robert Greene mentions in his book, 48 Laws of Power. Here Greene discusses something that affects most of us. Many amongst us probably have the habit of talking a lot, jumping into conversations, going on and on with tangents and topics that no one is interested in anymore.
Greene rightly says that the more a person speaks, the more his actual level of intellect and talents come forth. When a person is vague and does not speak much, people are left guessing as to whether he is a highly talented and intellectual individual or not. I have noticed that most people default towards the good in this case, so staying vague and by speaking less a person can come across as intelligent and interesting.
Of course, it helps if the few things that you say actually are intelligent and interesting, but nevertheless this is a good rule of thumb to live by.