"You live as you believe" is a famous saying of Kierkegaard. What I want to express is that people first exist without purpose and definition, find themselves in this world, and then define the meaning of their lives as a response to experience. It shows "firm optimism". Its optimistic meaning means "the fate of mankind is in our own hands".

Introduction:

In today's society, we are no longer "I am a brick of revolution, and I will move wherever I need it", nor "a screw of society, and I will nail wherever I need it."

This is not to emphasize that individuals can abandon the free will of others, but more and more people understand that human existence is determined by their own efforts, and objective existence certainly has a certain binding effect on their future, but human actions are purposeful practices and have the ability to transform the world.