Discourse on the Method
This dialogic book will train you to doubt systematically and think with precision. You will learn to identify what truly withstands skepticism and construct reliable knowledge step by step. Descartes' method becomes a tool you can apply to any problem.
Misinformation, competing experts, the feeling that you cannot trust your own judgment. Descartes faced a similar crisis in 1637, when inherited authorities and sensory experience both seemed unreliable. His response was radical: doubt everything until you find what cannot be doubted. You will acquire a method for clearing away confusion and building knowledge on foundations you have tested yourself.