For this we must make automatic and habitual, as early as possible, as many useful actions as we can, and guard against the growing into ways that are likely to be disadvantageous to us, as we should guard against the plague.
—William James,
“The Laws of Habit,” The Popular Science Monthly (February 1887)
It ain’t what you don’t know that gets you into trouble. It’s what you know for sure that just ain’t so.
—Mark Twain