I see a lot of critical considering that the author has forced the pathos, that teenagers are not realistic, that the end is predictable ... But what touched me most in this book, is the look. The disillusioned and cynical Hazel, the sincerity and optimism of Gus. The work is extremely mastered and shines with its echoes, especially between the romance and the situation in which the characters are, which gives the keys to understanding the secondary characters (including you care too, which is rare enough to be raised ) including the author and Hazel's parents. I saw in this story a lot of hope; so do not be afraid to live our lives will never be as we dreamed, we suffer too often, but the value of it is the only absolute that we will ever see.
To people who see here a gentillet novel, dealing only a teenage audience: I'm sorry you could not reach the first level of reading the book. The philosophical references flocking, coarser (Hazel humble and down to earth empiricist, the idealistic Augustus) to the more sophisticated (wink Kierkegaard and has experience of anxiety, Zenon of Elea, Dilemma at the tram that illustrates spiritually fear of the consequences that haunts Hazel ...)
Everyone can see in this book what he wants, and this is its strength; we can see a tragic love story between two adolescents as there were hundreds. Or we can see there a story that addresses spiritually refreshing and fears that we all, while playing on metaphors, put in abyme and philosophical references brilliantly.