Hume reduced philosophy to ruins: he denied the existence of everything—except our actual perceptions themselves. I alone exist, he argued, and the world is nothing more than part of my consciousness. Yet we know that the world remains, and we go on as before. What Hume expressed was the status of our knowledge about the world, a world in which neither religion nor science is certain.

In Hume in 90 Minutes, Paul Strathern offers a concise, expert account of Hume's life and ideas and explains their influence on man's struggle to understand his existence in the world. The book also includes selections from Hume's work, a brief list of suggested readings for those who wish to delve deeper, and chronologies that place Hume within his own age and in the broader scheme of philosophy.