How does the physics we know today - a highly professionalised enterprise, inextricably linked to government and industry - link back to its origins as a liberal art in Ancient Greece? John Heilbron's crisp and witty book tells the 2500-year story and highlights the implications for humankind's self-understanding.

This book introduces the life and work of one of the most creative physicists of the 20th century. Niels Bohr, the pioneer of quantum theory, ranking with Einstein in importance for the development of modern physics, also had deep interests in philosophy, literature, and humanism. John Heilbron explores how these influenced his groundbreaking work.