One can tell for sure that there are circumstances when you are assigned to do enormous amounts of tasks while there is no time to work out at least one of them. Contemporary people from day to day face the need to achieve new knowledge and the possibility to study while working. Of course it is a great chance for those who could not afford university education in the past and reached the opportunity to improve. As you can see there is a vast variety of possibilities and regardless there exists a lack of time.