We all worked with our hands, we just had different tools and worked on different materials, be it fabric, leather, or human tissue. Our basic tools, however, were a needle and thread. When I was growing up in Scotland, I remember studying my dad as he worked at his tailor’s bench. In the yellow light he bent over the fabric, lips pursed in concentration, dividing the tweed with huge shears. Around his neck was his measuring tape, by his…