What is the moral lesson of the story Les Miserables?

Hugo had many major messages in his novel Les Miserables. He criticized the injustice of the French justice system. He pointed out the incredulous suffering of the miserables, such as Eponine and Fantine. Hugo criticizes society for their harsh and unforgiving treatment of convicts, but he does make a point of not making all criminals capable of turning their lives around the way that Jean Valjean does. Hugo describes what the ideal government would consist of in Enjolras' speeches in the barricade. By reading Enjolras' major speeches, you can decipher the several major messages of Victor Hugo.