“If you're told what to look for, you can't see anything else. So one thing is to see, in a way, without words.... Once you have an idea, or somebody tells you something to look for, that's about all you can see. I had this experience recently: A dear friend of ours has been diagnosed with Alzheimer's, and I hadn't seen her for about six months. And when she came and visited, I couldn't see her anymore. I could only look now for symptoms, how the dementia was manifesting itself. I couldn't see her through any other lens but the possible symptoms. And that one word, that one piece of knowledge totally corrupted every time I looked at her.”