Biography, in essence, is a record of human life activities and a special carrier of human life. Human life activities not only show the desire for survival and development, but also show the development and release of their own potential. The development and release of their own potential is a kind of force creation. Creation includes various forms, including the display of politicians' ability to govern the country and stabilize the world, the exploration of philosophers and thinkers in the spiritual field, the battle contest of strategists and galloping on the battlefield, the invention and creation of scientists, the talent display of writers and artists, the innovation and transformation of living environment by reformers, etc. This is a magnificent picture of life, and is a challenge from vitality to inertia. Only in this challenge can mankind maintain the vitality of their life and create better conditions for the cohesion of vitality. Chinese classical biographies are the display of this vitality.
 The main idea of this paragraph is Chinese classical biographies show the vitality of life from many angles.