Ecclesiastes 7:13 says,  Consider the work of God: for who can make that straight, which he hath made crooked?  Solomon was reminding us to look to God when we consider the things of this world.  No law of man is ever going to make the things that God says is wrong be right.  We need to acknowledge this as God's followers, and never accept anything less.  Sin will always be sin, which is anything that goes against God's will.  Still, we must be careful that we hate the sin and not the sinner.  When we begin to hate the sinner, then we are not acting in accordance with God's will.  Verse fourteen says, In the day of prosperity be joyful, but in the day of adversity consider: God also hath set the one over against the other, to the end that man should find nothing after him.  When we prosper under the leadership of God, realizing that He is the author of prosperity, we should be joyful.  If we find ourselves in adversity, we should remember that God is still in control and rejoice in the Lord.  I believe Solomon is saying that in the perspective of God, they both amount to the same thing, which is nothing.  Again, we are to keep our focus on God, and we should live rejoicing each day that as His followers He has given us everlasting life.  The things of this world will always be but of this world.  Verse fifteen says, All things have I seen in the days of my vanity: there is a just man that perisheth in his righteousness, and there is a wicked man that prolongeth his life in his wickedness.  I believe Solomon was saying what we often say, and that is that life is not fair.  Why should the righteous die young and the wicked live long lives?  We are looking at things from a worldly view when we have this attitude.  This life, no matter how long, is but the blinking of an eye in terms of life everlasting.  If a righteous man dies young, that is not a reflection on the value of his or her life.  We have not been deprived of anything, since if we are followers of Christ we go away to everlasting life.  If a wicked person lives a very long life, that person has not gained anything, as they go away to everlasting separation from God.  Even if a righteous person's life were cut short by a wicked person's actions, the righteous person still wins.  This world is not the destination of the soul.