Paul Kalanithi, When Breath Becomes Air

"Neurosurgery is really hard work, and no one would have faulted me for not going back. (People often ask if it is a calling, and my answer is always yes. You can't see it as a job, because if it's a job, it's one of the worst jobs there is.)"

"the physician's duty is not to stave off death or return patients to their old lives, but to take into our arms a patient and family whose lives have disintegrated and work until they can stand back up and face, and make sense of, their own existence."