Knowledge is essential for human beings because it enables us to understand and make sense of the world around us. It is the foundation upon which we build our understanding of everything from the natural world to human society and culture.

When we have knowledge about a particular situation, we can better understand the potential risks and benefits associated with taking a particular course of action. This understanding can give us the confidence and courage to take action even when we may be afraid or uncertain.

For example, a soldier who has undergone rigorous training and has studied military tactics and strategy is more likely to have the courage to face the dangers of combat.
A surgeon who has studied anatomy and has years of experience is more likely to have the courage to perform a complex surgery.

Similarly, a person who has knowledge about their rights and the law is more likely to have the courage to stand up for themselves in the face of injustice or discrimination.

Knowledge can help us overcome fear and uncertainty, which in turn can lead to greater courage in facing any challenges.