One of the discouraging discoveries of our disillusioning century is that science is neutral: it will kill for us as readily as it will heal, and will destroy for us more readily than it can build. How inadequate now seems the proud motto of Francis Bacon, “Knowledge is power”! Sometimes we feel that the Middle Ages and the Renaissance, which stressed mythology and art rather than science and power, may have been wiser than we, who repeatedly enlarge our instrumentalities without improving our purposes.
