"Wisdom makes one wise man more powerful than ten rulers in a city." NIV translation
Throughout the Bible, the number ten speaks of the completion of the earthly cycle of things. Here, Solomon tells us that a wise man has more strength than all of the earthly governments. This is a sharp contrast to what he was saying about going along with the ways of this world. The devil will tell you that it is better to "go with the flow" and "you can't change anything" but God gives us the wisdom to know that, through Him, we can! An example for Americans today is the so-called Obamacare health legislation. Governments are telling us that we must look to them and their programs for our physical well being. The wise man (mature man of God) will realize that Jesus is the Great Physician. As Christians, we can look to Jesus for the treatment and healing of our illnesses and in fact He can and does cure things that the medical doctors cannot and He does it for free.
"There is not a righteous man on earth who does what is right and never sins. Do not pay attention to every word people say, or you may hear your servant cursing you - for you know in your heart that many times you yourself have cursed others." NIV translation
Solomon introduces us to another tactic of the devil which is isolation. Satan wants us to believe that we are the only ones who have ever sinned. The Hebrew word for cursed is qalal and it means to make fun of or minimize (what we would call "beat down" or "bullying"). The devil will use the words of others to beat us down to a place where we believe that we cannot be saved.
At that point, we will give up and go with the flow walking down the middle of the road. Solomon warns us to ignore all of the talk and remember that it is what God says about us that matters and not the words of sinful man. We can ignore what others say if we remember that our words were used to hurt people before we gave our lives to Christ.
"All this I tested by wisdom and I said, 'I am determined to be wise' - but this was beyond me. Whatever wisdom may be, it is far off and most profound - who can discover it?" NIV translation
Solomon tells us that this knowledge of the schemes of the devil and the ways of the world was impossible to understand on his own. He realized that it was only through the power of God that he (and we) can understand what is happening around us and why it is taking place. In our world today, many people are chasing wisdom by attending more and more colleges and getting more advanced degrees in learning. Although it is good to take in information, we must remember that it is only God that can give us wisdom. There is no Bible college degree that can replace the power of God.