| Reason is a pattern. It is a part of our function as human beings. Lesser creatures don't reason because their instinctive behavior takes them as far as they are capable going.
Even though they can train mice to follow a maze to cheese or whatever the reward is at the end, it's all patterned by repetitive movements. Not at all like reasoning.
Although I can image that primitive man had to repeat many movements in order to fathom what caused any particular effect. Perhaps those early brain exercises became the pattern that has survived to our time, each succeeding generation improving upon it. |