Readings: Keeping It In Perspective

I ... followed a golden rule that whenever a published fact, a new observation or thought came across me, which was opposed to my general results, to make a memorandum of it without fail and at once; for I had found by experience that such facts and thoughts were far more apt to escape from memory than favorable ones. Owing to this habit, very few objections were raised against my views that I had not at least noticed and attempted to answer.

Charles Darwin, 1958, quoted in Wiggins and McTighe's "Understanding By Design," 2005 p. 96.