Paragraph development by example is one of the most common and most useful means for expanding the topic sentence into a more convincing discourse.

Read the following paragraph and pay special attention to the examples that support the topic sentence.

Sample:

      Life in the 21st century demands professional ability and civic awareness. Therefore, young people today must prepare themselves through adequate schooling for their careers as well as for their responsibilities as citizens. For instance, if one likes science, he might prepare himself to be a chemist, physicist, or biologist. For another instance, one's interests might take him into serious study of business in order to qualify for such work as accounting, international business management or public relations. Still, there are many other ways of preparation for persons with talent and ambition to find their place in government service, medicine, law, and many other fields that offer fascinating careers.