““There were two kinds of people in this world. Those whose thoughts and emotions were on a dial and those whose emotions were on a switch. He was a switchman himself and had spent his entire lifetime among switches. Something either was or wasn’t. Had happened or hadn’t. You either could do it or couldn’t. It either worked or it didn’t. You were either happy or unhappy. Dial people were different. Their emotions ran up and down a scale and you had to guess at what point they were and try to coax them to go in the direction you wanted.””
