The Comma

One day , a professor joined all his students , and signed to be together , forever in the same group . While signing , the professor started to distribute on them , a sign ... a comma ( , ) like sign ... So the students asked him : Why did you choose professor , a sign used to separate the different part of a phrase ? So he answered : No , it is just a continuation ... let the other continue , so you will have the best phrase , life ... dont ever use a point , to say , everything is over ...