The poem of "Little Boy Lost-Little Boy Found" starts off with the values that once your lost you may not even get found again. You can stay lost forever and never find the light. The poem of "Poison Tree" begins with values of being angry, but showing a fake face to not make people feel bad. If you hold that face for a long time something could go wrong.
During the middle of the poem "Little Boy Lost-Little Boy Found" you start to realize there isn't one specific character, the author talks about all of humanity. The values of society in the middle of the poem is I am almost found, but why can't I stop this suffrage, find the light in me, and be finally be all good again. Also in "Poison Tree" you realize that the author refers to humanity, not just a specified character. The values in the middle of the poem are I am starting to begin not being able to control my anger. I start to show my anger to my enemy, this makes my foe very sad and upset.
In the end of the poem "Little Boy Lost-Little Boy found" the values of humanity are when your lost you'll eventually be found with hard work and motivation; you'll eventually find the light. In the end of "Poison Tree" the values of humanity are when you are angry and you have an enemy you'll eventually lose them, then start all over again with another person.