“There’s a tremendous need to implode the myths of mental illness, to put a face on it, to show people that a diagnosis does not have to lead to a painful and oblique life,” said Elyn R. Saks, a professor at the University of Southern California School of Law who chronicles her own struggles with schizophrenia in “The Center Cannot Hold: My Journey Through Madness.” “We who struggle with these disorders can lead full, happy, productive lives, if we have the right resources.”