Any person who has lived in the twentieth century has seen a lot of changes
take place in almost all areas of human existence. Some people are excited by the
challenges that these changes offer; others want to return to the simpler life-style of
the past. The twentieth century has certain advantages such as a higher standard of
living for many. but it also has some disadvantages such as a polluted environment.
the depersonalization of human relationships, and the weakening of spiritual values.