Not being happy with what you have accomplished so far is a sign of greatness. Once you feel you have achieved enough, you become complacent. Do not feel inferi

Not being happy with what you have accomplished so far is a sign of greatness. Once you feel you have achieved enough, you become complacent. Do not feel inferior. As long as you feel there is room for improvement, you will keep improving. Only when you start thinking you know it all it's time to get worried.