On High Street lies the famous sculpture of Scottish philosopher David Hume, whose toe (which the sculptor left poking out on purpose so that it would be more noticeable)  is now considered a lucky charm by philosophy students (and probably tourists).  The toe is so shiny from being rubbed for good luck that Hume may lose his toe altogether from erosion.  So before that happens, here's a look.  The last one reminds me to get my lens cleaned :(