When Not Knowing Really Is Knowing! 
When someone says “I don’t know” it usually means they are expressing their own lack of knowledge or ignorance about a subject or about the answer to a question. Ignorance is generally looked down upon by society, while appearing to “know” is typically a response that attracts confidence from other people. When you hear a politician speak, you will rarely hear them say, “I don’t know” because this would lead others to believe that the politician is either uneducated on the subject at best or downright ignorant or uncaring at worst.
Small droplets of rain turn into Rivers, Streams and Mighty Oceans