Radical Honesty:
Eli states that he practices "Radical Honesty"; Radical Honesty is the name of a self improvement program developed by Brad Blanton that challenges people to give up their addiction to lying. The Radical Honesty technique includes having practitioners state their feelings directly and in ways typically considered impolitic (the technique is sometimes confused with the person having functioning autism or Asperger's due to the practitioner's brutal honesty).
James' father got angry to his teacher because of the book " The Color Purple" written by Alice Walter in 1982.