On Tue, May 7, 2013 at 6:49 AM, Gordon <gts_2000 at yahoo.com> wrote: Instruments like > watches and compasses help us know things, but they do not themselves know > anything. ### Watches, of course, know what time it is. Bacteria know how to metabolize glucose. Spiders know how to spin webs. Knowing is easy to see. Rafal