What was Darwin's motive?

Charles Darwin's primary motive was to understand the diversity of life and the processes that drive evolution. His extensive observations during the voyage of the HMS Beagle led him to question the prevailing views of species as fixed and unchanging. By developing the theory of natural selection, he aimed to provide a scientific explanation for the adaptation and variation observed in organisms. Ultimately, Darwin sought to illuminate the interconnectedness of life on Earth and the mechanisms behind its evolution.