21. Perhaps it is time to reexamine the idea that college degrees are a guarantee of intelligence .

22. A growing number of people are beginning to realize that wealth is not the sole prerequisite for happiness .

23. In spite of the extraordinary progress made in science and technology , problems remain in terms of guaranteeing that achievements benefit the greatest number of people .

24. A famous thinker once wrote that " the greatest threat to mankind is mankind itself ! " If this is indeed the case , then the current situation should make us ponder our futuer existence .

25. U.S. President Harry Truman once remarked : " The buck stops here ! " His view has been confirmed by numerous world leaders who have assumed full responsibility for their actions .

26. Large families were once seen as a blessing . Today , however , things are changing and an increasing number of Chinese parents realize that fewer is better .

27. People used to place total reliance on the government . The so-called " iron rice bowl " prevailed in the past , but things are quite different today .

28. Several years ago , Chinese streets were filled with people wearing identical drab clothing . Today , however , things are quite different and the streets are awash with people wearing fashionable bright colored outfits . Why has the change taken place ?

29. Years of observing human behavior has enabled me to conclude that the major difference between mediocrity and success lies solely with the individual concerned . Successful individuals consistently seek advancement , while their less industrious contemporaries are merely content with the status quo .

30. Traditional way of thinking have changed dramatically . The pendulum has swung and people are exhibiting greater open-mindedness and a burning desire to detemine their own destiny .