Remember that what you have is a neurological condition. It is genetically transmitted. It is caused by biology, by how your brain is wired. It is not a disease of the will, nor a moral failing, nor some kind of neurosis. It is not caused by a weakness in character, nor by a failure to mature. Its cure is not to be found in the power of the will, nor in punishment, nor in sacrifice, nor in pain. Always remember this. Try as they might, many people with ADD have great trouble accepting the syndrome as being rooted in biology rather than weakness of character.
— Ratey, John J. Md; Hallowell, Edward M. Md (2011-09-13). Driven to Distraction (Revised): Recognizing and Coping with Attention Deficit Disorder (p. 307). Random House, Inc.. Kindle Edition. (via adhdisme