Herbert Spencer

Born in Derby, England, Herbert Spencer was largely self-educated and first trained as a civil engineer before turning to journalism and writing. He became known for ambitious books that tried to connect biology, psychology, sociology, ethics, and politics into a single account of how complex systems develop over time.

Spencer wrote influential works including Social Statics, First Principles, The Study of Sociology, and The Man Versus the State. He is especially remembered for popularizing the phrase "survival of the fittest" and for arguing that social life, like the natural world, changes through long processes of development.

Although many of his ideas are debated today, Spencer was a major public intellectual in Britain and abroad during his lifetime. His work left a lasting mark on political thought, sociology, and discussions of evolution in the Victorian age.