Ecclesiastes 1:15 says, That which is crooked cannot be made straight: and that which is wanting cannot be numbered.  Solomon discovered that all his knowledge could not make human nature straight.  Humanity without God is indeed crooked.  He could not make himself acceptable to God through knowledge, and neither can we .  He lacked the ability to fill the want in his life.  We today will find that the more we know, the more we realize that we do not know that much.  What we should be wanting is a right relationship with God, and nothing material can satisfy this wanting.  We still realize our lack of ability to understand all the workings of the world.  Likewise, the more we have of the things of the world, the more we want as a rule.  Verse sixteen says, I communed with mine own heart, saying, Lo, I am come to great estate, and have gotten more wisdom than all they that have been before me in Jerusalem: yea, my heart had great experience of wisdom and knowledge.  Solomon looked inside himself and did a self evaluation of his estate and his wisdom compared to others.  I don't believe he was doing this to brag, but simply to compare himself to the rulers before him.  We today need to look to our own heart, to examine our innermost being, to see if we have been looking for purpose in the things of this world instead of our relationship to God.  If Solomon, with all his knowledge and riches couldn't find it, neither will we .  Verse seventeen says, And I gave my heart to know wisdom, and to know madness and folly: I perceived that this also is vexation of spirit.  Solomon looked for the answers not only in wisdom, but also in madness and folly.  People today look for happiness in many things that are foolish, such as excessive use of alcohol and drugs, but they soon find these do not satisfy.  Verse eighteen says,  For in much wisdom is much grief: and he that increaseth knowledge increaseth sorrow.  Solomon warns us that if we are looking to our wisdom alone for happiness and purpose, we are only going to increase our sorrow.  We will never gain enough knowledge or wealth to be satisfied without God.