Man has demonstrated that he is master of everything except his own nature.

Summary

This quote suggests that humanity has shown mastery and control over various aspects of the world, such as technology and the environment, but struggles to fully understand and master their own inherent nature. Despite advancements in science and technology, humans still struggle to fully comprehend their own desires, motivations, and emotions. It highlights the complexity and mystery of human nature, revealing that self-awareness and true mastery over oneself remain elusive.