Charlie wanted to be smart so he tried to do the best on the tests and beat Algernon in the maze so he could so they could use him so he could get smart. "I hope they use me." pg. 1.
Charlie found out that they were going to use him so they did the operation. "Their going to use me!" pg. 2.
Charlie was getting very smart but Algernon died so he did research to see what would happen to him. "Algernon died two days ago." pg. 18. "I have been given a lab of my own and permission to go ahead with the research." pg. 17
Charlie found out that he will progressively lose intelligence over time and eventually he will be back to where he was before and maybe die. "I am sorry to say the results must stand." pg. 17. (he found out that Algernon had lost intelligence all the way to the point that he died)
Charlie decided to move away from New York. "Thats why Im going away from New York for good." pg. 22.