some people think that life at present is better than life in the past. they think that now we are living a life that our ancestors could never have dreamed of. for instance, convenient foods from markets have simplified cooking. electric appliances at home have taken the drudgery out of housework. new inventions have helped to make our work more sufficient and less tiring. development in medicine has helped to make people live longer and healthier. it seems as if we were living in paradise.

　　other people, however, believe that life in the past is better than life at present. they argue that in this highly competitive society people have to work even harder and learn much more in order to adapt to the fast pace of modern life. moreover, people have to be sophisticated to deal with the many complicated matters in life and work. development in industry has caused lots of pollution. new inventions have put many people out of work.

　　in my opinion, life always has its problems. there are problems now which people didn't have to face in the past, and there were also problems in the past which people don't have to confront today. life is full of happiness if we should be optimistic. we should smile through everything whether it is happiness or misery. this is the right attitude towards life.