Around that time, Franklin developed a method for making difficult decisions. “My way is to divide a sheet of paper by a line into two columns, writing over the one Pro and the other Con,” he later recalled. Then he would list all the arguments on each side and weigh how important each was. “Where I find two, one on each side, that seem equal, I strike them both out; if I find a reason pro equal to some two reasons con, I strike out the three.” By this bookkeeper’s calculus, it became clear to him “where the balance lies.”
so thats where that comes from!
