What are the themes in destiny of the republic?

"Destiny of the Republic" explores themes such as the fragility of life, the impact of political power, and the intersection of science and medicine with ethics. It delves into the consequences of ambition and the personal versus public spheres, particularly through the lens of President James A. Garfield's life and assassination. Additionally, the book highlights the importance of innovation and the pursuit of knowledge, while also reflecting on the social and political challenges of the era. Ultimately, it underscores how individual destinies can be profoundly shaped by historical forces.