This seminal work is a foundational text in the field of phenomenology and philosophy, presenting a rigorous critique of psychologism—the view that logic is a part of psychology—and arguing for the independence and objectivity of logical truths. Through a series of detailed investigations, the author explores the nature of meaning, the structure of consciousness, and the relationship between language and logic. By distinguishing between the act of thinking and the content of thought, the work lays the groundwork for a new science of consciousness and establishes the author as a pivotal figure in 20th-century philosophy. The text is notable for its methodical approach and its significant influence on both the analytic and continental traditions in philosophy.

The 1940th greatest book of all time